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La ecuación:
Ecuación sin(x)=-1
Ecuación tan(x)=-1
Ecuación cos(x)=sin(x)
Ecuación 1-7*(4+2*x)=-9-4*x
Expresar {x} en función de y en la ecuación:
16*x-17*y=-9
-13*x-6*y=13
-11*x+4*y=-8
17*x+16*y=7
Expresiones idénticas
d^ cuatro *y/((d*x^ cuatro))+ nueve *d^ tres *y/((d*x^ tres))+ veintiuno *d^ dos *y/((d*x^ dos))-d*y/(d*x)- treinta *y= cero
d en el grado 4 multiplicar por y dividir por ((d multiplicar por x en el grado 4)) más 9 multiplicar por d al cubo multiplicar por y dividir por ((d multiplicar por x al cubo )) más 21 multiplicar por d al cuadrado multiplicar por y dividir por ((d multiplicar por x al cuadrado )) menos d multiplicar por y dividir por (d multiplicar por x) menos 30 multiplicar por y es igual a 0
d en el grado cuatro multiplicar por y dividir por ((d multiplicar por x en el grado cuatro)) más nueve multiplicar por d en el grado tres multiplicar por y dividir por ((d multiplicar por x en el grado tres)) más veintiuno multiplicar por d en el grado dos multiplicar por y dividir por ((d multiplicar por x en el grado dos)) menos d multiplicar por y dividir por (d multiplicar por x) menos treinta multiplicar por y es igual a cero
d4*y/((d*x4))+9*d3*y/((d*x3))+21*d2*y/((d*x2))-d*y/(d*x)-30*y=0
d4*y/d*x4+9*d3*y/d*x3+21*d2*y/d*x2-d*y/d*x-30*y=0
d⁴*y/((d*x⁴))+9*d³*y/((d*x³))+21*d²*y/((d*x²))-d*y/(d*x)-30*y=0
d en el grado 4*y/((d*x en el grado 4))+9*d en el grado 3*y/((d*x en el grado 3))+21*d en el grado 2*y/((d*x en el grado 2))-d*y/(d*x)-30*y=0
d^4y/((dx^4))+9d^3y/((dx^3))+21d^2y/((dx^2))-dy/(dx)-30y=0
d4y/((dx4))+9d3y/((dx3))+21d2y/((dx2))-dy/(dx)-30y=0
d4y/dx4+9d3y/dx3+21d2y/dx2-dy/dx-30y=0
d^4y/dx^4+9d^3y/dx^3+21d^2y/dx^2-dy/dx-30y=0
d^4*y/((d*x^4))+9*d^3*y/((d*x^3))+21*d^2*y/((d*x^2))-d*y/(d*x)-30*y=O
d^4*y dividir por ((d*x^4))+9*d^3*y dividir por ((d*x^3))+21*d^2*y dividir por ((d*x^2))-d*y dividir por (d*x)-30*y=0
Expresiones semejantes
d^4*y/((d*x^4))+9*d^3*y/((d*x^3))+21*d^2*y/((d*x^2))-d*y/(d*x)+30*y=0
d^4*y/((d*x^4))+9*d^3*y/((d*x^3))+21*d^2*y/((d*x^2))+d*y/(d*x)-30*y=0
d^4*y/((d*x^4))+9*d^3*y/((d*x^3))-21*d^2*y/((d*x^2))-d*y/(d*x)-30*y=0
d^4*y/((d*x^4))-9*d^3*y/((d*x^3))+21*d^2*y/((d*x^2))-d*y/(d*x)-30*y=0

d^4y/((dx^4))+9d^3y/((dx^3))+21d^2y/((dx^2))-dy/(dx)-30*y=0 la ecuación

El profesor se sorprenderá mucho al ver tu solución correcta😉

Solución

Ha introducido [src]

 4        3         2                   
d *y   9*d *y   21*d *y   d*y           
---- + ------ + ------- - --- - 30*y = 0
   4       3         2    d*x           
d*x     d*x       d*x

$$- 30 y + \left(\left(\left(\frac{d^{4} y}{d x^{4}} + \frac{9 d^{3} y}{d x^{3}}\right) + \frac{21 d^{2} y}{d x^{2}}\right) - \frac{d y}{d x}\right) = 0$$

Simplificar

Gráfica

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         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                     1      3*d    7*d                                                                                                                                                                                                                                                                                                                                                                                                            |   1       \  2400    10/     d    d     7*d  |                                                                                                                                                                      |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                     1      3*d    7*d                                                                                                                                                                                                                                                                                                                                                                                                            |   1       \  2400    10/     d    d     7*d  |                                                                                                                                                                      |
x1 = I*im|<                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                   ------ - ---- + ---                                                                                                                                                                                                                                                                                                                                                                                                          2*|-------- - --------------- - --- + -- + ------|                                                                                                                                                                      | + re|<                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                   ------ - ---- + ---                                                                                                                                                                                                                                                                                                                                                                                                          2*|-------- - --------------- - --- + -- + ------|                                                                                                                                                                      |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    14*d                                                                                                                                                                                                                                                                                           108000    5     300                                                                                                                                                                                                                                                                                                                                                                                                            \69120000          12         400   30   144000/                                                                                                                                                                      |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    14*d                                                                                                                                                                                                                                                                                           108000    5     300                                                                                                                                                                                                                                                                                                                                                                                                            \69120000          12         400   30   144000/                                                                                                                                                                      |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        /           ---- - 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + ---- + ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                                                         |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        /           ---- - 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + ---- + ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                                                         |
         ||                                ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                           /            1800     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                            ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                         |     ||                                ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                           /            1800     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                            ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                         |
         ||                               /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                       |     ||                               /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                       |
         ||                              /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                              /                                                                                                                                                                                                                                                                                                                                  /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                    /            /                                                                                               2                                                                                                                                                                                                            |     ||                              /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                              /                                                                                                                                                                                                                                                                                                                                  /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                    /            /                                                                                               2                                                                                                                                                                                                            |
         ||                             /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                                  /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                        /            /  /                       2                                                                    \                                                    3                                                                                                                                                        |     ||                             /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                                  /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                        /            /  /                       2                                                                    \                                                    3                                                                                                                                                        |
         ||                            /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                             /                                                                                                                                                                                                                                                                                                                                  /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                   /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                         |     ||                            /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                             /                                                                                                                                                                                                                                                                                                                                  /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                   /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                         |
         ||                           /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                         /                         2                    \                                                                                                                                    /                                                                                                                                                                                                                                                                                                                                  /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                         /                         2                    \                                                                                                                          /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                              |     ||                           /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                         /                         2                    \                                                                                                                                    /                                                                                                                                                                                                                                                                                                                                  /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                         /                         2                    \                                                                                                                          /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                              |
         ||                          /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                              |           /   1     7*d\                     |                                                                                                                                   /                                                                                                                                                                                                                                                                                                                                  /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                              |           /   1     7*d\                     |                                                                                                                         /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                          |     ||                          /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                              |           /   1     7*d\                     |                                                                                                                                   /                                                                                                                                                                                                                                                                                                                                  /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                              |           /   1     7*d\                     |                                                                                                                         /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                          |
         ||                         /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                          |           |- ---- - ---|      2    3         |                                                                                                                                  /                                                                                                                                                                                                                                                                                                                                  /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                          |           |- ---- - ---|      2    3         |                                                                                                                        /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                          |     ||                         /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                          |           |- ---- - ---|      2    3         |                                                                                                                                  /                                                                                                                                                                                                                                                                                                                                  /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                          |           |- ---- - ---|      2    3         |                                                                                                                        /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                          |
         ||                        /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                          |   1       \  2400    10/     d    d     7*d  |                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                          |   1       \  2400    10/     d    d     7*d  |                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                          |     ||                        /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                          |   1       \  2400    10/     d    d     7*d  |                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                          |   1       \  2400    10/     d    d     7*d  |                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                          |
         ||                       /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                        2*|-------- - --------------- - --- + -- + ------|                                                                                                                                /                                                                                                                                                                                                                                                                                                                                  /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                        2*|-------- - --------------- - --- + -- + ------|                                                                                                                      /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                                                          |     ||                       /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                        2*|-------- - --------------- - --- + -- + ------|                                                                                                                                /                                                                                                                                                                                                                                                                                                                                  /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                        2*|-------- - --------------- - --- + -- + ------|                                                                                                                      /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                                                          |
         ||                      /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                   \69120000          12         400   30   144000/                                                                                                                               /                                                                                                                                                                                                                                                                                                                                  /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                   \69120000          12         400   30   144000/                                                                                                                 3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------                                                          |     ||                      /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                   \69120000          12         400   30   144000/                                                                                                                               /                                                                                                                                                                                                                                                                                                                                  /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                   \69120000          12         400   30   144000/                                                                                                                 3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------                                                          |
         ||                     /           ---- + 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + --- - -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                 /                                                                                                                                                                                                                                                                                                                                  /           ---- + 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + --- - -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------      \/           \/                                                         4                                                                          27                                     16                   216                                6                                                                                 |     ||                     /           ---- + 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + --- - -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                 /                                                                                                                                                                                                                                                                                                                                  /           ---- + 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + --- - -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------      \/           \/                                                         4                                                                          27                                     16                   216                                6                                                                                 |
         ||                    /            3600     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                /                                                                                                                                                                                                                                                                                                                                  /            3600     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                          |     ||                    /            3600     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                /                                                                                                                                                                                                                                                                                                                                  /            3600     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                          |
         ||                   /                                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                             /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                        |     ||                   /                                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                             /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                        |
         ||                  /                                                                                                                                                                                                                                                                                                                       /            /                                                                                               2                                                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |     ||                  /                                                                                                                                                                                                                                                                                                                       /            /                                                                                               2                                                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
         ||                 /                                                                                                                                                                                                                                                                                                                       /            /  /                       2                                                                    \                                                    3                                                                                                            /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                                                         |     ||                 /                                                                                                                                                                                                                                                                                                                       /            /  /                       2                                                                    \                                                    3                                                                                                            /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                                                         |
         ||                /                                                                                                                                                                                                                                                                                                                       /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                            /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                                                                                                                                                                                                                                          |     ||                /                                                                                                                                                                                                                                                                                                                       /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                            /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                                                                                                                                                                                                                                          |
         ||               /                                                                                                                                                                                                                                                                                                                       /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                                                                                                                                                                                                                                               |     ||               /                                                                                                                                                                                                                                                                                                                       /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                                                                                                                                                                                                                                               |
         ||              /                                                                                                                                                                                                                                                                                                                       /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\           /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                                                           |     ||              /                                                                                                                                                                                                                                                                                                                       /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\           /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                                                           |
         ||             /                                                                                                                                                                                                                                                                                                                       /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |          /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                                                           |     ||             /                                                                                                                                                                                                                                                                                                                       /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |          /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                                                           |
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         ||           /                                                                                                                                                                                                                                                                                                                       /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/        /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                                                                                                                                                                                                                                                                                                                                           |     ||           /                                                                                                                                                                                                                                                                                                                       /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/        /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                                                                                                                                                                                                                                                                                                                                           |
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         ||  120                                                                                                                                                                                                                                                                                                    2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |     ||  120                                                                                                                                                                                                                                                                                                    2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
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$$x_{1} = \operatorname{re}{\left(\begin{cases} - \frac{\sqrt{\frac{7 d}{15} - 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{3600}}}{2} - \frac{\sqrt{\frac{14 d}{15} + 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{1800} + \frac{- \frac{3 d^{2}}{5} + \frac{7 d}{300} + \frac{1}{108000}}{\sqrt{\frac{7 d}{15} - 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{3600}}}}}{2} - \frac{1}{120} & \text{for}\: \frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000} = 0 \\- \frac{\sqrt{\frac{7 d}{15} + 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{3600} - \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}}{2} - \frac{\sqrt{\frac{14 d}{15} + \frac{- \frac{3 d^{2}}{5} + \frac{7 d}{300} + \frac{1}{108000}}{\sqrt{\frac{7 d}{15} + 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{3600} - \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}} - 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{1800} + \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}}{2} - \frac{1}{120} & \text{otherwise} \end{cases}\right)} + i \operatorname{im}{\left(\begin{cases} - \frac{\sqrt{\frac{7 d}{15} - 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{3600}}}{2} - \frac{\sqrt{\frac{14 d}{15} + 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{1800} + \frac{- \frac{3 d^{2}}{5} + \frac{7 d}{300} + \frac{1}{108000}}{\sqrt{\frac{7 d}{15} - 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{3600}}}}}{2} - \frac{1}{120} & \text{for}\: \frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000} = 0 \\- \frac{\sqrt{\frac{7 d}{15} + 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{3600} - \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}}{2} - \frac{\sqrt{\frac{14 d}{15} + \frac{- \frac{3 d^{2}}{5} + \frac{7 d}{300} + \frac{1}{108000}}{\sqrt{\frac{7 d}{15} + 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{3600} - \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}} - 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{1800} + \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}}{2} - \frac{1}{120} & \text{otherwise} \end{cases}\right)}$$

         //                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   \     //                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   \
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                /                  ______________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                /                  ______________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               /                  /                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               /                  /                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              /                  /    /            2      \                  3                  /                       3     2\                                                                             2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              /                  /    /            2      \                  3                  /                       3     2\                                                                             2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                   1      3*d    7*d                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                   1      3*d    7*d                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                 ------ - ---- + ---                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                 ------ - ---- + ---                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    14*d                                                         108000    5     300                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    14*d                                                         108000    5     300                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          /       ---- + 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---- + --------------------------------------------------------------------------------------------------------------------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          /       ---- + 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---- + --------------------------------------------------------------------------------------------------------------------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         /        1800     \/                   8                    108                                3                            15             _______________________________________________________________________________________________________________________             _______________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         /        1800     \/                   8                    108                                3                            15             _______________________________________________________________________________________________________________________             _______________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        /                                                                                                                                          /                  ______________________________________________________________________________________________                   /                  ______________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        /                                                                                                                                          /                  ______________________________________________________________________________________________                   /                  ______________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       /                                                                                                                                          /                  /                        2                                                                                       /                  /                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       /                                                                                                                                          /                  /                        2                                                                                       /                  /                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      /                                                                                                                                          /                  /    /            2      \                  3                  /                       3     2\                  /                  /    /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      /                                                                                                                                          /                  /    /            2      \                  3                  /                       3     2\                  /                  /    /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     /                                                                                                                                          /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                 /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     /                                                                                                                                          /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                 /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    /                                                                                                                                          /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               2                        |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    /                                                                                                                                          /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               2                        |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   /                                                                                                                                          /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d        /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          /   1     7*d\                         |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   /                                                                                                                                          /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d        /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          /   1     7*d\                         |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                          /       ---- - 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---       /       ---- - 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |- ---- - ---|      2    3             |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                          /       ---- - 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---       /       ---- - 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |- ---- - ---|      2    3             |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           1    \/                                                                                                                                         \/        3600     \/                   8                    108                                3                            15     \/        3600     \/                   8                    108                                3                            15                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  1       \  2400    10/     d    d     7*d      |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           1    \/                                                                                                                                         \/        3600     \/                   8                    108                                3                            15     \/        3600     \/                   8                    108                                3                            15                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  1       \  2400    10/     d    d     7*d      |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        - --- + ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- - --------------------------------------------------------------------------------------------------------------------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          for -------- - --------------- - --- + -- + ------ = 0|     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        - --- + ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- - --------------------------------------------------------------------------------------------------------------------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          for -------- - --------------- - --- + -- + ------ = 0|
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          120                                                                                                                                        2                                                                                                                                                                                                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              69120000          12         400   30   144000    |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          120                                                                                                                                        2                                                                                                                                                                                                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              69120000          12         400   30   144000    |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
         ||                                            ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |     ||                                            ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
         ||                                           /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |     ||                                           /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
         ||                                          /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |     ||                                          /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            |
         ||                                         /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |     ||                                         /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
         ||                                        /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |     ||                                        /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
         ||                                       /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 /                         2                    \                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |     ||                                       /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 /                         2                    \                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
         ||                                      /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |           /   1     7*d\                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |     ||                                      /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |           /   1     7*d\                     |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
         ||                                     /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                  |           |- ---- - ---|      2    3         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |     ||                                     /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                  |           |- ---- - ---|      2    3         |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
         ||                                    /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                     1      3*d    7*d                                                                                                                                                                                                                                                                                                                                                                                                            |   1       \  2400    10/     d    d     7*d  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |     ||                                    /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                     1      3*d    7*d                                                                                                                                                                                                                                                                                                                                                                                                            |   1       \  2400    10/     d    d     7*d  |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
x2 = I*im|<                                   /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                   ------ - ---- + ---                                                                                                                                                                                                                                                                                                                                                                                                          2*|-------- - --------------- - --- + -- + ------|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             | + re|<                                   /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                   ------ - ---- + ---                                                                                                                                                                                                                                                                                                                                                                                                          2*|-------- - --------------- - --- + -- + ------|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
         ||                                  /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    14*d                                                                                                                                                                                                                                                                                           108000    5     300                                                                                                                                                                                                                                                                                                                                                                                                            \69120000          12         400   30   144000/                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |     ||                                  /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    14*d                                                                                                                                                                                                                                                                                           108000    5     300                                                                                                                                                                                                                                                                                                                                                                                                            \69120000          12         400   30   144000/                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
         ||                                 /           ---- - 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + ---- + ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |     ||                                 /           ---- - 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + ---- + ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
         ||                                /            1800     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                            ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                            ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                        |     ||                                /            1800     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                            ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                            ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                        |
         ||                               /                                                                                                                                                                                                                                                                                                                                  /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                         /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                               |     ||                               /                                                                                                                                                                                                                                                                                                                                  /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                         /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                               |
         ||                              /                                                                                                                                                                                                                                                                                                                                  /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                    /            /                                                                                               2                                                                                                                                                                             /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                             |     ||                              /                                                                                                                                                                                                                                                                                                                                  /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                    /            /                                                                                               2                                                                                                                                                                             /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                             |
         ||                             /                                                                                                                                                                                                                                                                                                                                  /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                        /            /  /                       2                                                                    \                                                    3                                                                                                                        /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |     ||                             /                                                                                                                                                                                                                                                                                                                                  /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                        /            /  /                       2                                                                    \                                                    3                                                                                                                        /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  |
         ||                            /                                                                                                                                                                                                                                                                                                                                  /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                   /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                        /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                                                              |     ||                            /                                                                                                                                                                                                                                                                                                                                  /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                   /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                        /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                                                              |
         ||                           /                                                                                                                                                                                                                                                                                                                                  /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                         /                         2                    \                                                                                                                          /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                            /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                         /                         2                    \                                                                                                                                                                      |     ||                           /                                                                                                                                                                                                                                                                                                                                  /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                         /                         2                    \                                                                                                                          /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                            /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                         /                         2                    \                                                                                                                                                                      |
         ||                          /                                                                                                                                                                                                                                                                                                                                  /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                              |           /   1     7*d\                     |                                                                                                                         /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                       /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                              |           /   1     7*d\                     |                                                                                                                                                                      |     ||                          /                                                                                                                                                                                                                                                                                                                                  /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                              |           /   1     7*d\                     |                                                                                                                         /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                       /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                              |           /   1     7*d\                     |                                                                                                                                                                      |
         ||                         /                                                                                                                                                                                                                                                                                                                                  /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                          |           |- ---- - ---|      2    3         |                                                                                                                        /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                      /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                          |           |- ---- - ---|      2    3         |                                                                                                                                                                      |     ||                         /                                                                                                                                                                                                                                                                                                                                  /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                          |           |- ---- - ---|      2    3         |                                                                                                                        /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                      /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                          |           |- ---- - ---|      2    3         |                                                                                                                                                                      |
         ||                        /                                                                                                                                                                                                                                                                                                                                  /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                          |   1       \  2400    10/     d    d     7*d  |                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                     /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                          |   1       \  2400    10/     d    d     7*d  |                                                                                                                                                                      |     ||                        /                                                                                                                                                                                                                                                                                                                                  /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                          |   1       \  2400    10/     d    d     7*d  |                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                     /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                          |   1       \  2400    10/     d    d     7*d  |                                                                                                                                                                      |
         ||                       /                                                                                                                                                                                                                                                                                                                                  /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                        2*|-------- - --------------- - --- + -- + ------|                                                                                                                      /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                    /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                        2*|-------- - --------------- - --- + -- + ------|                                                                                                                                                                      |     ||                       /                                                                                                                                                                                                                                                                                                                                  /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                        2*|-------- - --------------- - --- + -- + ------|                                                                                                                      /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                    /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                        2*|-------- - --------------- - --- + -- + ------|                                                                                                                                                                      |
         ||                      /                                                                                                                                                                                                                                                                                                                                  /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                   \69120000          12         400   30   144000/                                                                                                                 3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------                   /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                   \69120000          12         400   30   144000/                                                                                                                                                                      |     ||                      /                                                                                                                                                                                                                                                                                                                                  /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                   \69120000          12         400   30   144000/                                                                                                                 3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------                   /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                   \69120000          12         400   30   144000/                                                                                                                                                                      |
         ||                     /                                                                                                                                                                                                                                                                                                                                  /           ---- + 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + --- - -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------      \/           \/                                                         4                                                                          27                                     16                   216                                6                                         /           ---- + 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + --- - -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                                                         |     ||                     /                                                                                                                                                                                                                                                                                                                                  /           ---- + 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + --- - -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------      \/           \/                                                         4                                                                          27                                     16                   216                                6                                         /           ---- + 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + --- - -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                                                         |
         ||                    /                                                                                                                                                                                                                                                                                                                                  /            3600     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                 /            3600     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                         |     ||                    /                                                                                                                                                                                                                                                                                                                                  /            3600     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                 /            3600     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                         |
         ||                   /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                              /                                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                       |     ||                   /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                              /                                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                       |
         ||                  /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /                                                                                               2                                                                                                                                                                                                            |     ||                  /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /                                                                                               2                                                                                                                                                                                                            |
         ||                 /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                             /                                                                                                                                                                                                                                                                                                                       /            /  /                       2                                                                    \                                                    3                                                                                                                                                        |     ||                 /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                             /                                                                                                                                                                                                                                                                                                                       /            /  /                       2                                                                    \                                                    3                                                                                                                                                        |
         ||                /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                                                                                                                                                                                             /                                                                                                                                                                                                                                                                                                                       /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                         |     ||                /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                                                                                                                                                                                             /                                                                                                                                                                                                                                                                                                                       /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                         |
         ||               /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                                                                                                                                                                                                 /                                                                                                                                                                                                                                                                                                                       /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                              |     ||               /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                                                                                                                                                                                                 /                                                                                                                                                                                                                                                                                                                       /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                              |
         ||              /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                            /                                                                                                                                                                                                                                                                                                                       /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                          |     ||              /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                            /                                                                                                                                                                                                                                                                                                                       /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                          |
         ||             /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                           /                                                                                                                                                                                                                                                                                                                       /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                          |     ||             /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                           /                                                                                                                                                                                                                                                                                                                       /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                          |
         ||            /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                          /                                                                                                                                                                                                                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                          |     ||            /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                          /                                                                                                                                                                                                                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                          |
         ||           /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                                                                                                                                                                                                                                                                                         /                                                                                                                                                                                                                                                                                                                       /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                                                          |     ||           /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                                                                                                                                                                                                                                                                                         /                                                                                                                                                                                                                                                                                                                       /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                                                          |
         ||          /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                   3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------                                                                                                                                                                                                                                                                                        /                                                                                                                                                                                                                                                                                                                   3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------                                                          |     ||          /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                   3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------                                                                                                                                                                                                                                                                                        /                                                                                                                                                                                                                                                                                                                   3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------                                                          |
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$$x_{2} = \operatorname{re}{\left(\begin{cases} - \frac{\sqrt{\frac{7 d}{15} - 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{3600}}}{2} + \frac{\sqrt{\frac{14 d}{15} + 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{1800} + \frac{- \frac{3 d^{2}}{5} + \frac{7 d}{300} + \frac{1}{108000}}{\sqrt{\frac{7 d}{15} - 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{3600}}}}}{2} - \frac{1}{120} & \text{for}\: \frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000} = 0 \\- \frac{\sqrt{\frac{7 d}{15} + 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{3600} - \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}}{2} + \frac{\sqrt{\frac{14 d}{15} + \frac{- \frac{3 d^{2}}{5} + \frac{7 d}{300} + \frac{1}{108000}}{\sqrt{\frac{7 d}{15} + 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{3600} - \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}} - 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{1800} + \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}}{2} - \frac{1}{120} & \text{otherwise} \end{cases}\right)} + i \operatorname{im}{\left(\begin{cases} - \frac{\sqrt{\frac{7 d}{15} - 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{3600}}}{2} + \frac{\sqrt{\frac{14 d}{15} + 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{1800} + \frac{- \frac{3 d^{2}}{5} + \frac{7 d}{300} + \frac{1}{108000}}{\sqrt{\frac{7 d}{15} - 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{3600}}}}}{2} - \frac{1}{120} & \text{for}\: \frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000} = 0 \\- \frac{\sqrt{\frac{7 d}{15} + 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{3600} - \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}}{2} + \frac{\sqrt{\frac{14 d}{15} + \frac{- \frac{3 d^{2}}{5} + \frac{7 d}{300} + \frac{1}{108000}}{\sqrt{\frac{7 d}{15} + 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{3600} - \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}} - 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{1800} + \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}}{2} - \frac{1}{120} & \text{otherwise} \end{cases}\right)}$$

         //                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                \     //                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                \
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   /                  ______________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   /                  ______________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                  /                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                  /                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 /                  /    /            2      \                  3                  /                       3     2\                                                                             2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 /                  /    /            2      \                  3                  /                       3     2\                                                                             2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                   1      3*d    7*d                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                   1      3*d    7*d                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                 ------ - ---- + ---                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                 ------ - ---- + ---                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    14*d                                                         108000    5     300                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    14*d                                                         108000    5     300                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             /       ---- + 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---- - --------------------------------------------------------------------------------------------------------------------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             /       ---- + 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---- - --------------------------------------------------------------------------------------------------------------------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         _______________________________________________________________________________________________________________________            /        1800     \/                   8                    108                                3                            15             _______________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         _______________________________________________________________________________________________________________________            /        1800     \/                   8                    108                                3                            15             _______________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        /                  ______________________________________________________________________________________________                  /                                                                                                                                          /                  ______________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        /                  ______________________________________________________________________________________________                  /                                                                                                                                          /                  ______________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       /                  /                        2                                                                                      /                                                                                                                                          /                  /                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       /                  /                        2                                                                                      /                                                                                                                                          /                  /                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      /                  /    /            2      \                  3                  /                       3     2\                 /                                                                                                                                          /                  /    /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      /                  /    /            2      \                  3                  /                       3     2\                 /                                                                                                                                          /                  /    /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                /                                                                                                                                          /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                /                                                                                                                                          /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|               /                                                                                                                                          /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                2                        |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|               /                                                                                                                                          /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                2                        |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d       /                                                                                                                                          /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           /   1     7*d\                         |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d       /                                                                                                                                          /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           /   1     7*d\                         |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /       ---- - 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---      /                                                                                                                                          /       ---- - 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |- ---- - ---|      2    3             |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /       ---- - 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---      /                                                                                                                                          /       ---- - 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |- ---- - ---|      2    3             |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           1    \/        3600     \/                   8                    108                                3                            15    \/                                                                                                                                         \/        3600     \/                   8                    108                                3                            15                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   1       \  2400    10/     d    d     7*d      |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           1    \/        3600     \/                   8                    108                                3                            15    \/                                                                                                                                         \/        3600     \/                   8                    108                                3                            15                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   1       \  2400    10/     d    d     7*d      |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        - --- + -------------------------------------------------------------------------------------------------------------------------------- - ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          for -------- - --------------- - --- + -- + ------ = 0|     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        - --- + -------------------------------------------------------------------------------------------------------------------------------- - ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          for -------- - --------------- - --- + -- + ------ = 0|
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          120                                                                  2                                                                                                                                                                                                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    69120000          12         400   30   144000    |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          120                                                                  2                                                                                                                                                                                                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    69120000          12         400   30   144000    |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                        |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                        |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 /                         2                    \                                                                                                                                                                      |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 /                         2                    \                                                                                                                                                                      |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |           /   1     7*d\                     |                                                                                                                                                                      |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |           /   1     7*d\                     |                                                                                                                                                                      |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                  |           |- ---- - ---|      2    3         |                                                                                                                                                                      |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                  |           |- ---- - ---|      2    3         |                                                                                                                                                                      |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                     1      3*d    7*d                                                                                                                                                                                                                                                                                                                                                                                                            |   1       \  2400    10/     d    d     7*d  |                                                                                                                                                                      |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                     1      3*d    7*d                                                                                                                                                                                                                                                                                                                                                                                                            |   1       \  2400    10/     d    d     7*d  |                                                                                                                                                                      |
x3 = I*im|<                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                   ------ - ---- + ---                                                                                                                                                                                                                                                                                                                                                                                                          2*|-------- - --------------- - --- + -- + ------|                                                                                                                                                                      | + re|<                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                   ------ - ---- + ---                                                                                                                                                                                                                                                                                                                                                                                                          2*|-------- - --------------- - --- + -- + ------|                                                                                                                                                                      |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    14*d                                                                                                                                                                                                                                                                                           108000    5     300                                                                                                                                                                                                                                                                                                                                                                                                            \69120000          12         400   30   144000/                                                                                                                                                                      |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    14*d                                                                                                                                                                                                                                                                                           108000    5     300                                                                                                                                                                                                                                                                                                                                                                                                            \69120000          12         400   30   144000/                                                                                                                                                                      |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        /           ---- - 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + ---- - ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                                                         |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        /           ---- - 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + ---- - ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                                                         |
         ||                                ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                           /            1800     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                            ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                         |     ||                                ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                           /            1800     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                            ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                         |
         ||                               /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                       |     ||                               /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                       |
         ||                              /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                              /                                                                                                                                                                                                                                                                                                                                  /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                    /            /                                                                                               2                                                                                                                                                                                                            |     ||                              /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                              /                                                                                                                                                                                                                                                                                                                                  /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                    /            /                                                                                               2                                                                                                                                                                                                            |
         ||                             /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                                  /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                        /            /  /                       2                                                                    \                                                    3                                                                                                                                                        |     ||                             /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                                  /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                        /            /  /                       2                                                                    \                                                    3                                                                                                                                                        |
         ||                            /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                             /                                                                                                                                                                                                                                                                                                                                  /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                   /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                         |     ||                            /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                             /                                                                                                                                                                                                                                                                                                                                  /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                   /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                         |
         ||                           /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                         /                         2                    \                                                                                                                                    /                                                                                                                                                                                                                                                                                                                                  /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                         /                         2                    \                                                                                                                          /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                              |     ||                           /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                         /                         2                    \                                                                                                                                    /                                                                                                                                                                                                                                                                                                                                  /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                         /                         2                    \                                                                                                                          /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                              |
         ||                          /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                              |           /   1     7*d\                     |                                                                                                                                   /                                                                                                                                                                                                                                                                                                                                  /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                              |           /   1     7*d\                     |                                                                                                                         /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                          |     ||                          /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                              |           /   1     7*d\                     |                                                                                                                                   /                                                                                                                                                                                                                                                                                                                                  /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                              |           /   1     7*d\                     |                                                                                                                         /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                          |
         ||                         /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                          |           |- ---- - ---|      2    3         |                                                                                                                                  /                                                                                                                                                                                                                                                                                                                                  /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                          |           |- ---- - ---|      2    3         |                                                                                                                        /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                          |     ||                         /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                          |           |- ---- - ---|      2    3         |                                                                                                                                  /                                                                                                                                                                                                                                                                                                                                  /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                          |           |- ---- - ---|      2    3         |                                                                                                                        /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                          |
         ||                        /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                          |   1       \  2400    10/     d    d     7*d  |                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                          |   1       \  2400    10/     d    d     7*d  |                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                          |     ||                        /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                          |   1       \  2400    10/     d    d     7*d  |                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                          |   1       \  2400    10/     d    d     7*d  |                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                          |
         ||                       /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                        2*|-------- - --------------- - --- + -- + ------|                                                                                                                                /                                                                                                                                                                                                                                                                                                                                  /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                        2*|-------- - --------------- - --- + -- + ------|                                                                                                                      /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                                                          |     ||                       /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                        2*|-------- - --------------- - --- + -- + ------|                                                                                                                                /                                                                                                                                                                                                                                                                                                                                  /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                        2*|-------- - --------------- - --- + -- + ------|                                                                                                                      /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                                                          |
         ||                      /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                   \69120000          12         400   30   144000/                                                                                                                               /                                                                                                                                                                                                                                                                                                                                  /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                   \69120000          12         400   30   144000/                                                                                                                 3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------                                                          |     ||                      /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                   \69120000          12         400   30   144000/                                                                                                                               /                                                                                                                                                                                                                                                                                                                                  /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                   \69120000          12         400   30   144000/                                                                                                                 3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------                                                          |
         ||                     /           ---- + 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + --- - -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                 /                                                                                                                                                                                                                                                                                                                                  /           ---- + 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + --- - -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------      \/           \/                                                         4                                                                          27                                     16                   216                                6                                                                                 |     ||                     /           ---- + 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + --- - -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                 /                                                                                                                                                                                                                                                                                                                                  /           ---- + 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + --- - -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------      \/           \/                                                         4                                                                          27                                     16                   216                                6                                                                                 |
         ||                    /            3600     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                /                                                                                                                                                                                                                                                                                                                                  /            3600     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                          |     ||                    /            3600     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                /                                                                                                                                                                                                                                                                                                                                  /            3600     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                          |
         ||                   /                                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                             /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                        |     ||                   /                                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                             /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                        |
         ||                  /                                                                                                                                                                                                                                                                                                                       /            /                                                                                               2                                                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |     ||                  /                                                                                                                                                                                                                                                                                                                       /            /                                                                                               2                                                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
         ||                 /                                                                                                                                                                                                                                                                                                                       /            /  /                       2                                                                    \                                                    3                                                                                                            /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                                                         |     ||                 /                                                                                                                                                                                                                                                                                                                       /            /  /                       2                                                                    \                                                    3                                                                                                            /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                                                         |
         ||                /                                                                                                                                                                                                                                                                                                                       /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                            /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                                                                                                                                                                                                                                          |     ||                /                                                                                                                                                                                                                                                                                                                       /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                            /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                                                                                                                                                                                                                                          |
         ||               /                                                                                                                                                                                                                                                                                                                       /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                                                                                                                                                                                                                                               |     ||               /                                                                                                                                                                                                                                                                                                                       /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                                                                                                                                                                                                                                               |
         ||              /                                                                                                                                                                                                                                                                                                                       /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\           /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                                                           |     ||              /                                                                                                                                                                                                                                                                                                                       /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\           /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                                                           |
         ||             /                                                                                                                                                                                                                                                                                                                       /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |          /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                                                           |     ||             /                                                                                                                                                                                                                                                                                                                       /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |          /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                                                           |
         ||            /                                                                                                                                                                                                                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|         /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                                                           |     ||            /                                                                                                                                                                                                                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|         /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                                                           |
         ||           /                                                                                                                                                                                                                                                                                                                       /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/        /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                                                                                                                                                                                                                                                                                                                                           |     ||           /                                                                                                                                                                                                                                                                                                                       /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/        /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                                                                                                                                                                                                                                                                                                                                           |
         ||          /                                                                                                                                                                                                                                                                                                                   3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------       /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                   3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------                                                                                                                                                                                                                                                                                                                                           |     ||          /                                                                                                                                                                                                                                                                                                                   3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------       /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                   3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------                                                                                                                                                                                                                                                                                                                                           |
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         ||  120                                                                                                                                                                                                                                                                                                    2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |     ||  120                                                                                                                                                                                                                                                                                                    2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
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$$x_{3} = \operatorname{re}{\left(\begin{cases} \frac{\sqrt{\frac{7 d}{15} - 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{3600}}}{2} - \frac{\sqrt{\frac{14 d}{15} + 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{1800} - \frac{- \frac{3 d^{2}}{5} + \frac{7 d}{300} + \frac{1}{108000}}{\sqrt{\frac{7 d}{15} - 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{3600}}}}}{2} - \frac{1}{120} & \text{for}\: \frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000} = 0 \\\frac{\sqrt{\frac{7 d}{15} + 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{3600} - \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}}{2} - \frac{\sqrt{\frac{14 d}{15} - \frac{- \frac{3 d^{2}}{5} + \frac{7 d}{300} + \frac{1}{108000}}{\sqrt{\frac{7 d}{15} + 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{3600} - \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}} - 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{1800} + \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}}{2} - \frac{1}{120} & \text{otherwise} \end{cases}\right)} + i \operatorname{im}{\left(\begin{cases} \frac{\sqrt{\frac{7 d}{15} - 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{3600}}}{2} - \frac{\sqrt{\frac{14 d}{15} + 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{1800} - \frac{- \frac{3 d^{2}}{5} + \frac{7 d}{300} + \frac{1}{108000}}{\sqrt{\frac{7 d}{15} - 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{3600}}}}}{2} - \frac{1}{120} & \text{for}\: \frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000} = 0 \\\frac{\sqrt{\frac{7 d}{15} + 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{3600} - \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}}{2} - \frac{\sqrt{\frac{14 d}{15} - \frac{- \frac{3 d^{2}}{5} + \frac{7 d}{300} + \frac{1}{108000}}{\sqrt{\frac{7 d}{15} + 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{3600} - \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}} - 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{1800} + \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}}{2} - \frac{1}{120} & \text{otherwise} \end{cases}\right)}$$

         //                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                \     //                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    ___________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                \
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   /                  ______________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   /                  ______________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                  /                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                  /                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 /                  /    /            2      \                  3                  /                       3     2\                                                                             2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 /                  /    /            2      \                  3                  /                       3     2\                                                                             2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                   1      3*d    7*d                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                   1      3*d    7*d                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                 ------ - ---- + ---                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                 ------ - ---- + ---                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    14*d                                                         108000    5     300                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    14*d                                                         108000    5     300                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             /       ---- + 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---- - --------------------------------------------------------------------------------------------------------------------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             /       ---- + 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---- - --------------------------------------------------------------------------------------------------------------------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         _______________________________________________________________________________________________________________________            /        1800     \/                   8                    108                                3                            15             _______________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         _______________________________________________________________________________________________________________________            /        1800     \/                   8                    108                                3                            15             _______________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        /                  ______________________________________________________________________________________________                  /                                                                                                                                          /                  ______________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        /                  ______________________________________________________________________________________________                  /                                                                                                                                          /                  ______________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       /                  /                        2                                                                                      /                                                                                                                                          /                  /                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       /                  /                        2                                                                                      /                                                                                                                                          /                  /                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      /                  /    /            2      \                  3                  /                       3     2\                 /                                                                                                                                          /                  /    /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      /                  /    /            2      \                  3                  /                       3     2\                 /                                                                                                                                          /                  /    /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                /                                                                                                                                          /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                /                                                                                                                                          /                  /     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|               /                                                                                                                                          /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                2                        |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|               /                                                                                                                                          /                  /      |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                2                        |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d       /                                                                                                                                          /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           /   1     7*d\                         |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d       /                                                                                                                                          /       1          /       \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           /   1     7*d\                         |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /       ---- - 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---      /                                                                                                                                          /       ---- - 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |- ---- - ---|      2    3             |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /       ---- - 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---      /                                                                                                                                          /       ---- - 2*3 /      - ---------------------- - --------------- + -----------------------------------------------  + ---                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           |- ---- - ---|      2    3             |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           1    \/        3600     \/                   8                    108                                3                            15    \/                                                                                                                                         \/        3600     \/                   8                    108                                3                            15                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   1       \  2400    10/     d    d     7*d      |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           1    \/        3600     \/                   8                    108                                3                            15    \/                                                                                                                                         \/        3600     \/                   8                    108                                3                            15                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   1       \  2400    10/     d    d     7*d      |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        - --- + -------------------------------------------------------------------------------------------------------------------------------- + ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          for -------- - --------------- - --- + -- + ------ = 0|     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        - --- + -------------------------------------------------------------------------------------------------------------------------------- + ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          for -------- - --------------- - --- + -- + ------ = 0|
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          120                                                                  2                                                                                                                                                                                                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    69120000          12         400   30   144000    |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          120                                                                  2                                                                                                                                                                                                        2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    69120000          12         400   30   144000    |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                        |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                   ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                        |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
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         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 /                         2                    \                                                                                                                                                                      |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                              /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 /                         2                    \                                                                                                                                                                      |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |           /   1     7*d\                     |                                                                                                                                                                      |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                      |           /   1     7*d\                     |                                                                                                                                                                      |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                  |           |- ---- - ---|      2    3         |                                                                                                                                                                      |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                            /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                  |           |- ---- - ---|      2    3         |                                                                                                                                                                      |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                     1      3*d    7*d                                                                                                                                                                                                                                                                                                                                                                                                            |   1       \  2400    10/     d    d     7*d  |                                                                                                                                                                      |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                     1      3*d    7*d                                                                                                                                                                                                                                                                                                                                                                                                            |   1       \  2400    10/     d    d     7*d  |                                                                                                                                                                      |
x4 = I*im|<                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                   ------ - ---- + ---                                                                                                                                                                                                                                                                                                                                                                                                          2*|-------- - --------------- - --- + -- + ------|                                                                                                                                                                      | + re|<                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                   ------ - ---- + ---                                                                                                                                                                                                                                                                                                                                                                                                          2*|-------- - --------------- - --- + -- + ------|                                                                                                                                                                      |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    14*d                                                                                                                                                                                                                                                                                           108000    5     300                                                                                                                                                                                                                                                                                                                                                                                                            \69120000          12         400   30   144000/                                                                                                                                                                      |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                         /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    14*d                                                                                                                                                                                                                                                                                           108000    5     300                                                                                                                                                                                                                                                                                                                                                                                                            \69120000          12         400   30   144000/                                                                                                                                                                      |
         ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        /           ---- - 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + ---- - ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                                                         |     ||                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        /           ---- - 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + ---- - ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- + -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                                                         |
         ||                                ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                           /            1800     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                            ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                         |     ||                                ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                           /            1800     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                            ____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                         |
         ||                               /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                       |     ||                               /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                      _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                       |
         ||                              /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                              /                                                                                                                                                                                                                                                                                                                                  /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                    /            /                                                                                               2                                                                                                                                                                                                            |     ||                              /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                              /                                                                                                                                                                                                                                                                                                                                  /                      /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                    /            /                                                                                               2                                                                                                                                                                                                            |
         ||                             /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                                  /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                        /            /  /                       2                                                                    \                                                    3                                                                                                                                                        |     ||                             /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                                  /                      /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                        /            /  /                       2                                                                    \                                                    3                                                                                                                                                        |
         ||                            /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                             /                                                                                                                                                                                                                                                                                                                                  /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                   /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                         |     ||                            /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                             /                                                                                                                                                                                                                                                                                                                                  /                      /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                   /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                         |
         ||                           /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                         /                         2                    \                                                                                                                                    /                                                                                                                                                                                                                                                                                                                                  /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                         /                         2                    \                                                                                                                          /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                              |     ||                           /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                         /                         2                    \                                                                                                                                    /                                                                                                                                                                                                                                                                                                                                  /                      /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                         /                         2                    \                                                                                                                          /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                              |
         ||                          /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                              |           /   1     7*d\                     |                                                                                                                                   /                                                                                                                                                                                                                                                                                                                                  /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                              |           /   1     7*d\                     |                                                                                                                         /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                          |     ||                          /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                              |           /   1     7*d\                     |                                                                                                                                   /                                                                                                                                                                                                                                                                                                                                  /                      /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                              |           /   1     7*d\                     |                                                                                                                         /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                          |
         ||                         /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                          |           |- ---- - ---|      2    3         |                                                                                                                                  /                                                                                                                                                                                                                                                                                                                                  /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                          |           |- ---- - ---|      2    3         |                                                                                                                        /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                          |     ||                         /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                          |           |- ---- - ---|      2    3         |                                                                                                                                  /                                                                                                                                                                                                                                                                                                                                  /                      /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                          |           |- ---- - ---|      2    3         |                                                                                                                        /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                          |
         ||                        /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                          |   1       \  2400    10/     d    d     7*d  |                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                          |   1       \  2400    10/     d    d     7*d  |                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                          |     ||                        /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                          |   1       \  2400    10/     d    d     7*d  |                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                      /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                          |   1       \  2400    10/     d    d     7*d  |                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                          |
         ||                       /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                        2*|-------- - --------------- - --- + -- + ------|                                                                                                                                /                                                                                                                                                                                                                                                                                                                                  /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                        2*|-------- - --------------- - --- + -- + ------|                                                                                                                      /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                                                          |     ||                       /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                        2*|-------- - --------------- - --- + -- + ------|                                                                                                                                /                                                                                                                                                                                                                                                                                                                                  /                      /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                        2*|-------- - --------------- - --- + -- + ------|                                                                                                                      /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                                                          |
         ||                      /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                   \69120000          12         400   30   144000/                                                                                                                               /                                                                                                                                                                                                                                                                                                                                  /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                   \69120000          12         400   30   144000/                                                                                                                 3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------                                                          |     ||                      /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                   \69120000          12         400   30   144000/                                                                                                                               /                                                                                                                                                                                                                                                                                                                                  /           1          /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/    7*d                                                                                                                   \69120000          12         400   30   144000/                                                                                                                 3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------                                                          |
         ||                     /           ---- + 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + --- - -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                 /                                                                                                                                                                                                                                                                                                                                  /           ---- + 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + --- - -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------      \/           \/                                                         4                                                                          27                                     16                   216                                6                                                                                 |     ||                     /           ---- + 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + --- - -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------                 /                                                                                                                                                                                                                                                                                                                                  /           ---- + 2*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------  + --- - -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------      \/           \/                                                         4                                                                          27                                     16                   216                                6                                                                                 |
         ||                    /            3600     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                /                                                                                                                                                                                                                                                                                                                                  /            3600     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                          |     ||                    /            3600     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                /                                                                                                                                                                                                                                                                                                                                  /            3600     \/           \/                                                         4                                                                          27                                     16                   216                                6                            15                 _______________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                          |
         ||                   /                                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                             /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                        |     ||                   /                                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                             /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            _____________________________________________________________________________________________________________________________________________________                                                                                                                                                                                                                                                                                                                                                                                                                                        |
         ||                  /                                                                                                                                                                                                                                                                                                                       /            /                                                                                               2                                                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |     ||                  /                                                                                                                                                                                                                                                                                                                       /            /                                                                                               2                                                                                                                                                                 /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /                                                                                               2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                             |
         ||                 /                                                                                                                                                                                                                                                                                                                       /            /  /                       2                                                                    \                                                    3                                                                                                            /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                                                         |     ||                 /                                                                                                                                                                                                                                                                                                                       /            /  /                       2                                                                    \                                                    3                                                                                                            /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /  /                       2                                                                    \                                                    3                                                                                                                                                                                                                                                                                                                                                                                                                                         |
         ||                /                                                                                                                                                                                                                                                                                                                       /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                            /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                                                                                                                                                                                                                                          |     ||                /                                                                                                                                                                                                                                                                                                                       /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                            /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /   |  /            2      \                  3                  /                       3     2\|    /                         2                    \                                                                                                                                                                                                                                                                                                                                                                                                                                          |
         ||               /                                                                                                                                                                                                                                                                                                                       /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                                                                                                                                                                                                                                               |     ||               /                                                                                                                                                                                                                                                                                                                       /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /    |  |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d ||    |           /   1     7*d\                     |                          2                                                                                                                                                                                                                                                                                                                                                                                                               |
         ||              /                                                                                                                                                                                                                                                                                                                       /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\           /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                                                           |     ||              /                                                                                                                                                                                                                                                                                                                       /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\           /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /     |  |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---||    |           |- ---- - ---|      2    3         |     /            2      \                  3                  /                       3     2\                                                                                                                                                                                                                                                                                                                                           |
         ||             /                                                                                                                                                                                                                                                                                                                       /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |          /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                                                           |     ||             /                                                                                                                                                                                                                                                                                                                       /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |          /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /      |  \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/|    |   1       \  2400    10/     d    d     7*d  |     |  1      3*d    7*d|    /   1     7*d\    /   1     7*d\ |     1        7*d     d     d |                                                                                                                                                                                                                                                                                                                                           |
         ||            /                                                                                                                                                                                                                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|         /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                                                           |     ||            /                                                                                                                                                                                                                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|         /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /       |- ---------------------- - --------------- + -----------------------------------------------|    |-------- - --------------- - --- + -- + ------|     |------ - ---- + ---|    |- ---- - ---|    |- ---- - ---|*|- -------- - ------ - -- + ---|                                                                                                                                                                                                                                                                                                                                           |
         ||           /                                                                                                                                                                                                                                                                                                                       /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/        /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                                                                                                                                                                                                                                                                                                                                           |     ||           /                                                                                                                                                                                                                                                                                                                       /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/        /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                       /            /        \            8                    108                                3                       /    \69120000          12         400   30   144000/     \216000    10    600/    \  2400    10/    \  2400    10/ \  69120000   144000   30   400/                                                                                                                                                                                                                                                                                                                                           |
         ||          /                                                                                                                                                                                                                                                                                                                   3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------       /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                   3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------                                                                                                                                                                                                                                                                                                                                           |     ||          /                                                                                                                                                                                                                                                                                                                   3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------       /                                                                                                                                                                                                                                                                                                                                  /                                                                                                                                                                                                                                                                                                                   3*3 /            /         ----------------------------------------------------------------------------------------------- + -------------------------------------------------  + ---------------------- + --------------- - -----------------------------------------------                                                                                                                                                                                                                                                                                                                                           |
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         ||  120                                                                                                                                                                                                                                                                                                    2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |     ||  120                                                                                                                                                                                                                                                                                                    2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                2                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
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$$x_{4} = \operatorname{re}{\left(\begin{cases} \frac{\sqrt{\frac{7 d}{15} - 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{3600}}}{2} + \frac{\sqrt{\frac{14 d}{15} + 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{1800} - \frac{- \frac{3 d^{2}}{5} + \frac{7 d}{300} + \frac{1}{108000}}{\sqrt{\frac{7 d}{15} - 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{3600}}}}}{2} - \frac{1}{120} & \text{for}\: \frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000} = 0 \\\frac{\sqrt{\frac{7 d}{15} + 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{3600} - \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}}{2} + \frac{\sqrt{\frac{14 d}{15} - \frac{- \frac{3 d^{2}}{5} + \frac{7 d}{300} + \frac{1}{108000}}{\sqrt{\frac{7 d}{15} + 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{3600} - \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}} - 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{1800} + \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}}{2} - \frac{1}{120} & \text{otherwise} \end{cases}\right)} + i \operatorname{im}{\left(\begin{cases} \frac{\sqrt{\frac{7 d}{15} - 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{3600}}}{2} + \frac{\sqrt{\frac{14 d}{15} + 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{1800} - \frac{- \frac{3 d^{2}}{5} + \frac{7 d}{300} + \frac{1}{108000}}{\sqrt{\frac{7 d}{15} - 2 \sqrt[3]{- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}} + \frac{1}{3600}}}}}{2} - \frac{1}{120} & \text{for}\: \frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000} = 0 \\\frac{\sqrt{\frac{7 d}{15} + 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{3600} - \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}}{2} + \frac{\sqrt{\frac{14 d}{15} - \frac{- \frac{3 d^{2}}{5} + \frac{7 d}{300} + \frac{1}{108000}}{\sqrt{\frac{7 d}{15} + 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{3600} - \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}} - 2 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}} + \frac{1}{1800} + \frac{2 \left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)}{3 \sqrt[3]{\frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{216} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{6} + \sqrt{\frac{\left(- \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{3}}{108} + \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right) \left(- \frac{d^{3}}{30} + \frac{d^{2}}{400} - \frac{7 d}{144000} - \frac{1}{69120000}\right)}{3} - \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{8}\right)^{2}}{4} + \frac{\left(\frac{d^{3}}{30} - \frac{d^{2}}{400} + \frac{7 d}{144000} - \frac{\left(- \frac{7 d}{10} - \frac{1}{2400}\right)^{2}}{12} + \frac{1}{69120000}\right)^{3}}{27}} + \frac{\left(- \frac{3 d^{2}}{10} + \frac{7 d}{600} + \frac{1}{216000}\right)^{2}}{16}}}}}{2} - \frac{1}{120} & \text{otherwise} \end{cases}\right)}$$

x4 = re(Piecewise((sqrt(7*d/15 - 2*(-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^(1/3) + 1/3600)/2 + sqrt(14*d/15 + 2*(-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^(1/3) + 1/1800 - (-3*d^2/5 + 7*d/300 + 1/108000)/sqrt(7*d/15 - 2*(-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^(1/3) + 1/3600)/2 - 1/120, d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000 = 0), (sqrt(7*d/15 + 2*((-7*d/10 - 1/2400)^3/216 - (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/6 + sqrt((-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^2/4 + (d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)^3/27) + (-3*d^2/10 + 7*d/600 + 1/216000)^2/16)^(1/3) + 1/3600 - 2*(d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)/(3*((-7*d/10 - 1/2400)^3/216 - (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/6 + sqrt((-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^2/4 + (d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)^3/27) + (-3*d^2/10 + 7*d/600 + 1/216000)^2/16)^(1/3)))/2 + sqrt(14*d/15 - (-3*d^2/5 + 7*d/300 + 1/108000)/sqrt(7*d/15 + 2*((-7*d/10 - 1/2400)^3/216 - (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/6 + sqrt((-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^2/4 + (d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)^3/27) + (-3*d^2/10 + 7*d/600 + 1/216000)^2/16)^(1/3) + 1/3600 - 2*(d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)/(3*((-7*d/10 - 1/2400)^3/216 - (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/6 + sqrt((-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^2/4 + (d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)^3/27) + (-3*d^2/10 + 7*d/600 + 1/216000)^2/16)^(1/3))) - 2*((-7*d/10 - 1/2400)^3/216 - (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/6 + sqrt((-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^2/4 + (d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)^3/27) + (-3*d^2/10 + 7*d/600 + 1/216000)^2/16)^(1/3) + 1/1800 + 2*(d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)/(3*((-7*d/10 - 1/2400)^3/216 - (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/6 + sqrt((-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^2/4 + (d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)^3/27) + (-3*d^2/10 + 7*d/600 + 1/216000)^2/16)^(1/3)))/2 - 1/120, True))) + i*im(Piecewise((sqrt(7*d/15 - 2*(-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^(1/3) + 1/3600)/2 + sqrt(14*d/15 + 2*(-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^(1/3) + 1/1800 - (-3*d^2/5 + 7*d/300 + 1/108000)/sqrt(7*d/15 - 2*(-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^(1/3) + 1/3600))/2 - 1/120, d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000 = 0), (sqrt(7*d/15 + 2*((-7*d/10 - 1/2400)^3/216 - (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/6 + sqrt((-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^2/4 + (d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)^3/27) + (-3*d^2/10 + 7*d/600 + 1/216000)^2/16)^(1/3) + 1/3600 - 2*(d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)/(3*((-7*d/10 - 1/2400)^3/216 - (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/6 + sqrt((-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^2/4 + (d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)^3/27) + (-3*d^2/10 + 7*d/600 + 1/216000)^2/16)^(1/3)))/2 + sqrt(14*d/15 - (-3*d^2/5 + 7*d/300 + 1/108000)/sqrt(7*d/15 + 2*((-7*d/10 - 1/2400)^3/216 - (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/6 + sqrt((-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^2/4 + (d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)^3/27) + (-3*d^2/10 + 7*d/600 + 1/216000)^2/16)^(1/3) + 1/3600 - 2*(d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)/(3*((-7*d/10 - 1/2400)^3/216 - (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/6 + sqrt((-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^2/4 + (d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)^3/27) + (-3*d^2/10 + 7*d/600 + 1/216000)^2/16)^(1/3))) - 2*((-7*d/10 - 1/2400)^3/216 - (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/6 + sqrt((-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^2/4 + (d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)^3/27) + (-3*d^2/10 + 7*d/600 + 1/216000)^2/16)^(1/3) + 1/1800 + 2*(d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)/(3*((-7*d/10 - 1/2400)^3/216 - (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/6 + sqrt((-(-7*d/10 - 1/2400)^3/108 + (-7*d/10 - 1/2400)*(-d^3/30 + d^2/400 - 7*d/144000 - 1/69120000)/3 - (-3*d^2/10 + 7*d/600 + 1/216000)^2/8)^2/4 + (d^3/30 - d^2/400 + 7*d/144000 - (-7*d/10 - 1/2400)^2/12 + 1/69120000)^3/27) + (-3*d^2/10 + 7*d/600 + 1/216000)^2/16)^(1/3)))/2 - 1/120, True))))

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d^4*y/((d*x^4))+9*d^3*y/((d*x^3))+21*d^2*y/((d*x^2))-d*y/(d*x)-30*y=0 la ecuación

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d^4y/((dx^4))+9d^3y/((dx^3))+21d^2y/((dx^2))-dy/(dx)-30*y=0 la ecuación