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((z+pi)*sin(pi/2*z))/((z*(sin(z))^2))

Derivada de ((z+pi)*sin(pi/2*z))/((z*(sin(z))^2))

Función f() - derivada -er orden en el punto
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Gráfico:

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Solución

Ha introducido [src]
            /pi  \
(z + pi)*sin|--*z|
            \2   /
------------------
         2        
    z*sin (z)     
(z+π)sin(zπ2)zsin2(z)\frac{\left(z + \pi\right) \sin{\left(z \frac{\pi}{2} \right)}}{z \sin^{2}{\left(z \right)}}
((z + pi)*sin((pi/2)*z))/((z*sin(z)^2))
Solución detallada
  1. Se aplica la regla de la derivada parcial:

    ddzf(z)g(z)=f(z)ddzg(z)+g(z)ddzf(z)g2(z)\frac{d}{d z} \frac{f{\left(z \right)}}{g{\left(z \right)}} = \frac{- f{\left(z \right)} \frac{d}{d z} g{\left(z \right)} + g{\left(z \right)} \frac{d}{d z} f{\left(z \right)}}{g^{2}{\left(z \right)}}

    f(z)=(z+π)sin(zπ2)f{\left(z \right)} = \left(z + \pi\right) \sin{\left(z \frac{\pi}{2} \right)} y g(z)=zsin2(z)g{\left(z \right)} = z \sin^{2}{\left(z \right)}.

    Para calcular ddzf(z)\frac{d}{d z} f{\left(z \right)}:

    1. Se aplica la regla de la derivada de una multiplicación:

      ddzf(z)g(z)=f(z)ddzg(z)+g(z)ddzf(z)\frac{d}{d z} f{\left(z \right)} g{\left(z \right)} = f{\left(z \right)} \frac{d}{d z} g{\left(z \right)} + g{\left(z \right)} \frac{d}{d z} f{\left(z \right)}

      f(z)=z+πf{\left(z \right)} = z + \pi; calculamos ddzf(z)\frac{d}{d z} f{\left(z \right)}:

      1. diferenciamos z+πz + \pi miembro por miembro:

        1. La derivada de una constante π\pi es igual a cero.

        2. Según el principio, aplicamos: zz tenemos 11

        Como resultado de: 11

      g(z)=sin(zπ2)g{\left(z \right)} = \sin{\left(z \frac{\pi}{2} \right)}; calculamos ddzg(z)\frac{d}{d z} g{\left(z \right)}:

      1. Sustituimos u=zπ2u = z \frac{\pi}{2}.

      2. La derivada del seno es igual al coseno:

        ddusin(u)=cos(u)\frac{d}{d u} \sin{\left(u \right)} = \cos{\left(u \right)}

      3. Luego se aplica una cadena de reglas. Multiplicamos por ddzzπ2\frac{d}{d z} z \frac{\pi}{2}:

        1. La derivada del producto de una constante por función es igual al producto de esta constante por la derivada de esta función.

          1. Según el principio, aplicamos: zz tenemos 11

          Entonces, como resultado: π2\frac{\pi}{2}

        Como resultado de la secuencia de reglas:

        πcos(zπ2)2\frac{\pi \cos{\left(z \frac{\pi}{2} \right)}}{2}

      Como resultado de: π(z+π)cos(zπ2)2+sin(zπ2)\frac{\pi \left(z + \pi\right) \cos{\left(z \frac{\pi}{2} \right)}}{2} + \sin{\left(z \frac{\pi}{2} \right)}

    Para calcular ddzg(z)\frac{d}{d z} g{\left(z \right)}:

    1. Se aplica la regla de la derivada de una multiplicación:

      ddzf(z)g(z)=f(z)ddzg(z)+g(z)ddzf(z)\frac{d}{d z} f{\left(z \right)} g{\left(z \right)} = f{\left(z \right)} \frac{d}{d z} g{\left(z \right)} + g{\left(z \right)} \frac{d}{d z} f{\left(z \right)}

      f(z)=zf{\left(z \right)} = z; calculamos ddzf(z)\frac{d}{d z} f{\left(z \right)}:

      1. Según el principio, aplicamos: zz tenemos 11

      g(z)=sin2(z)g{\left(z \right)} = \sin^{2}{\left(z \right)}; calculamos ddzg(z)\frac{d}{d z} g{\left(z \right)}:

      1. Sustituimos u=sin(z)u = \sin{\left(z \right)}.

      2. Según el principio, aplicamos: u2u^{2} tenemos 2u2 u

      3. Luego se aplica una cadena de reglas. Multiplicamos por ddzsin(z)\frac{d}{d z} \sin{\left(z \right)}:

        1. La derivada del seno es igual al coseno:

          ddzsin(z)=cos(z)\frac{d}{d z} \sin{\left(z \right)} = \cos{\left(z \right)}

        Como resultado de la secuencia de reglas:

        2sin(z)cos(z)2 \sin{\left(z \right)} \cos{\left(z \right)}

      Como resultado de: 2zsin(z)cos(z)+sin2(z)2 z \sin{\left(z \right)} \cos{\left(z \right)} + \sin^{2}{\left(z \right)}

    Ahora aplicamos la regla de la derivada de una divesión:

    z(π(z+π)cos(zπ2)2+sin(zπ2))sin2(z)(z+π)(2zsin(z)cos(z)+sin2(z))sin(zπ2)z2sin4(z)\frac{z \left(\frac{\pi \left(z + \pi\right) \cos{\left(z \frac{\pi}{2} \right)}}{2} + \sin{\left(z \frac{\pi}{2} \right)}\right) \sin^{2}{\left(z \right)} - \left(z + \pi\right) \left(2 z \sin{\left(z \right)} \cos{\left(z \right)} + \sin^{2}{\left(z \right)}\right) \sin{\left(z \frac{\pi}{2} \right)}}{z^{2} \sin^{4}{\left(z \right)}}

  2. Simplificamos:

    z(π(z+π)cos(πz2)+2sin(πz2))sin(z)2(z+π)(2zcos(z)+sin(z))sin(πz2)2z2sin3(z)\frac{z \left(\pi \left(z + \pi\right) \cos{\left(\frac{\pi z}{2} \right)} + 2 \sin{\left(\frac{\pi z}{2} \right)}\right) \sin{\left(z \right)} - 2 \left(z + \pi\right) \left(2 z \cos{\left(z \right)} + \sin{\left(z \right)}\right) \sin{\left(\frac{\pi z}{2} \right)}}{2 z^{2} \sin^{3}{\left(z \right)}}


Respuesta:

z(π(z+π)cos(πz2)+2sin(πz2))sin(z)2(z+π)(2zcos(z)+sin(z))sin(πz2)2z2sin3(z)\frac{z \left(\pi \left(z + \pi\right) \cos{\left(\frac{\pi z}{2} \right)} + 2 \sin{\left(\frac{\pi z}{2} \right)}\right) \sin{\left(z \right)} - 2 \left(z + \pi\right) \left(2 z \cos{\left(z \right)} + \sin{\left(z \right)}\right) \sin{\left(\frac{\pi z}{2} \right)}}{2 z^{2} \sin^{3}{\left(z \right)}}

Gráfica
02468-8-6-4-2-1010-50000005000000
Primera derivada [src]
          /               /pi  \            \            /     2                       \    /pi  \
          |pi*(z + pi)*cos|--*z|            |   (z + pi)*\- sin (z) - 2*z*cos(z)*sin(z)/*sin|--*z|
    1     |               \2   /      /pi  \|                                               \2   /
---------*|--------------------- + sin|--*z|| + --------------------------------------------------
     2    \          2                \2   //                        2    4                       
z*sin (z)                                                           z *sin (z)                    
1zsin2(z)(π(z+π)cos(zπ2)2+sin(zπ2))+(z+π)(2zsin(z)cos(z)sin2(z))sin(zπ2)z2sin4(z)\frac{1}{z \sin^{2}{\left(z \right)}} \left(\frac{\pi \left(z + \pi\right) \cos{\left(z \frac{\pi}{2} \right)}}{2} + \sin{\left(z \frac{\pi}{2} \right)}\right) + \frac{\left(z + \pi\right) \left(- 2 z \sin{\left(z \right)} \cos{\left(z \right)} - \sin^{2}{\left(z \right)}\right) \sin{\left(z \frac{\pi}{2} \right)}}{z^{2} \sin^{4}{\left(z \right)}}
Segunda derivada [src]
                                                                                                                      /                                                               /     2           2                     \                                 \          
     /       /pi*z\                  /pi*z\\   /     /pi*z\                  /pi*z\\                                  |2*z*cos(z) + sin(z)   /1   2*cos(z)\                         2*\z*cos (z) - z*sin (z) + 2*cos(z)*sin(z)/   2*(2*z*cos(z) + sin(z))*cos(z)|    /pi*z\
  pi*|- 4*cos|----| + pi*(pi + z)*sin|----||   |2*sin|----| + pi*(pi + z)*cos|----||*(2*z*cos(z) + sin(z))   (pi + z)*|------------------- + |- + --------|*(2*z*cos(z) + sin(z)) - ------------------------------------------- + ------------------------------|*sin|----|
     \       \ 2  /                  \ 2  //   \     \ 2  /                  \ 2  //                                  \         z            \z    sin(z) /                                            sin(z)                                 sin(z)            /    \ 2  /
- ------------------------------------------ - ----------------------------------------------------------- + --------------------------------------------------------------------------------------------------------------------------------------------------------------
                      4                                                  z*sin(z)                                                                                                       z*sin(z)                                                                           
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                      2                                                                                                                                    
                                                                                                                                 z*sin (z)                                                                                                                                 
π(π(z+π)sin(πz2)4cos(πz2))4+(z+π)((2zcos(z)+sin(z))(2cos(z)sin(z)+1z)+2(2zcos(z)+sin(z))cos(z)sin(z)2(zsin2(z)+zcos2(z)+2sin(z)cos(z))sin(z)+2zcos(z)+sin(z)z)sin(πz2)zsin(z)(2zcos(z)+sin(z))(π(z+π)cos(πz2)+2sin(πz2))zsin(z)zsin2(z)\frac{- \frac{\pi \left(\pi \left(z + \pi\right) \sin{\left(\frac{\pi z}{2} \right)} - 4 \cos{\left(\frac{\pi z}{2} \right)}\right)}{4} + \frac{\left(z + \pi\right) \left(\left(2 z \cos{\left(z \right)} + \sin{\left(z \right)}\right) \left(\frac{2 \cos{\left(z \right)}}{\sin{\left(z \right)}} + \frac{1}{z}\right) + \frac{2 \left(2 z \cos{\left(z \right)} + \sin{\left(z \right)}\right) \cos{\left(z \right)}}{\sin{\left(z \right)}} - \frac{2 \left(- z \sin^{2}{\left(z \right)} + z \cos^{2}{\left(z \right)} + 2 \sin{\left(z \right)} \cos{\left(z \right)}\right)}{\sin{\left(z \right)}} + \frac{2 z \cos{\left(z \right)} + \sin{\left(z \right)}}{z}\right) \sin{\left(\frac{\pi z}{2} \right)}}{z \sin{\left(z \right)}} - \frac{\left(2 z \cos{\left(z \right)} + \sin{\left(z \right)}\right) \left(\pi \left(z + \pi\right) \cos{\left(\frac{\pi z}{2} \right)} + 2 \sin{\left(\frac{\pi z}{2} \right)}\right)}{z \sin{\left(z \right)}}}{z \sin^{2}{\left(z \right)}}
Tercera derivada [src]
                                                                                                                                                                                                                                             /                                                                                                                                                              /1   2*cos(z)\                                                                                                                               /1   2*cos(z)\ /     2           2                     \                                        /1   2*cos(z)\                                                              \                                                                               
                                                                                                                                                                                                                                             |             /       2           2                       \                           /              2              \                                          |- + --------|*(2*z*cos(z) + sin(z))      /     2           2                     \            /     2           2                     \   2*|- + --------|*\z*cos (z) - z*sin (z) + 2*cos(z)*sin(z)/         2                            2*|- + --------|*(2*z*cos(z) + sin(z))*cos(z)                                 |                                                                               
                                                                                      /                                                               /     2           2                     \                                 \            |           2*\- 3*cos (z) + 3*sin (z) + 4*z*cos(z)*sin(z)/                           |    1    3*cos (z)   2*cos(z)|   3*(2*z*cos(z) + sin(z))                \z    sin(z) /                         12*\z*cos (z) - z*sin (z) + 2*cos(z)*sin(z)/*cos(z)   6*\z*cos (z) - z*sin (z) + 2*cos(z)*sin(z)/     \z    sin(z) /                                             10*cos (z)*(2*z*cos(z) + sin(z))     \z    sin(z) /                                8*(2*z*cos(z) + sin(z))*cos(z)|    /pi*z\                                                                     
    2 /     /pi*z\                  /pi*z\\     /     /pi*z\                  /pi*z\\ |2*z*cos(z) + sin(z)   /1   2*cos(z)\                         2*\z*cos (z) - z*sin (z) + 2*cos(z)*sin(z)/   2*(2*z*cos(z) + sin(z))*cos(z)|   (pi + z)*|2*sin(z) - ----------------------------------------------- + 2*(2*z*cos(z) + sin(z))*|1 + -- + --------- + --------| + ----------------------- + 4*z*cos(z) + ------------------------------------ - --------------------------------------------------- - ------------------------------------------- - ---------------------------------------------------------- + -------------------------------- + --------------------------------------------- + ------------------------------|*sin|----|        /       /pi*z\                  /pi*z\\                      
  pi *|6*sin|----| + pi*(pi + z)*cos|----||   3*|2*sin|----| + pi*(pi + z)*cos|----||*|------------------- + |- + --------|*(2*z*cos(z) + sin(z)) - ------------------------------------------- + ------------------------------|            |                                sin(z)                                               |     2       2       z*sin(z)|               2                                           z                                              2                                              z*sin(z)                                              sin(z)                                            2                                       sin(z)                                 z*sin(z)           |    \ 2  /   3*pi*|- 4*cos|----| + pi*(pi + z)*sin|----||*(2*z*cos(z) + sin(z))
      \     \ 2  /                  \ 2  //     \     \ 2  /                  \ 2  // \         z            \z    sin(z) /                                            sin(z)                                 sin(z)            /            \                                                                                     \    z     sin (z)            /              z                                                                                        sin (z)                                                                                                                                                sin (z)                                                                                              /                  \       \ 2  /                  \ 2  //                      
- ----------------------------------------- + ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- - ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ + ------------------------------------------------------------------
                      8                                                                                                            2*z*sin(z)                                                                                                                                                                                                                                                                                                                                         z*sin(z)                                                                                                                                                                                                                                                                                 4*z*sin(z)                            
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
                                                                                                                                                                                                                                                                                                                                                                                                           2                                                                                                                                                                                                                                                                                                                                                                                                         
                                                                                                                                                                                                                                                                                                                                                                                                      z*sin (z)                                                                                                                                                                                                                                                                                                                                                                                                      
π2(π(z+π)cos(πz2)+6sin(πz2))8(z+π)(4zcos(z)+2(2zcos(z)+sin(z))(2cos(z)sin(z)+1z)cos(z)sin(z)+2(2zcos(z)+sin(z))(1+3cos2(z)sin2(z)+2cos(z)zsin(z)+1z2)+10(2zcos(z)+sin(z))cos2(z)sin2(z)2(2cos(z)sin(z)+1z)(zsin2(z)+zcos2(z)+2sin(z)cos(z))sin(z)12(zsin2(z)+zcos2(z)+2sin(z)cos(z))cos(z)sin2(z)2(4zsin(z)cos(z)+3sin2(z)3cos2(z))sin(z)+2sin(z)+(2zcos(z)+sin(z))(2cos(z)sin(z)+1z)z+8(2zcos(z)+sin(z))cos(z)zsin(z)6(zsin2(z)+zcos2(z)+2sin(z)cos(z))zsin(z)+3(2zcos(z)+sin(z))z2)sin(πz2)zsin(z)+3π(2zcos(z)+sin(z))(π(z+π)sin(πz2)4cos(πz2))4zsin(z)+3(π(z+π)cos(πz2)+2sin(πz2))((2zcos(z)+sin(z))(2cos(z)sin(z)+1z)+2(2zcos(z)+sin(z))cos(z)sin(z)2(zsin2(z)+zcos2(z)+2sin(z)cos(z))sin(z)+2zcos(z)+sin(z)z)2zsin(z)zsin2(z)\frac{- \frac{\pi^{2} \left(\pi \left(z + \pi\right) \cos{\left(\frac{\pi z}{2} \right)} + 6 \sin{\left(\frac{\pi z}{2} \right)}\right)}{8} - \frac{\left(z + \pi\right) \left(4 z \cos{\left(z \right)} + \frac{2 \left(2 z \cos{\left(z \right)} + \sin{\left(z \right)}\right) \left(\frac{2 \cos{\left(z \right)}}{\sin{\left(z \right)}} + \frac{1}{z}\right) \cos{\left(z \right)}}{\sin{\left(z \right)}} + 2 \left(2 z \cos{\left(z \right)} + \sin{\left(z \right)}\right) \left(1 + \frac{3 \cos^{2}{\left(z \right)}}{\sin^{2}{\left(z \right)}} + \frac{2 \cos{\left(z \right)}}{z \sin{\left(z \right)}} + \frac{1}{z^{2}}\right) + \frac{10 \left(2 z \cos{\left(z \right)} + \sin{\left(z \right)}\right) \cos^{2}{\left(z \right)}}{\sin^{2}{\left(z \right)}} - \frac{2 \left(\frac{2 \cos{\left(z \right)}}{\sin{\left(z \right)}} + \frac{1}{z}\right) \left(- z \sin^{2}{\left(z \right)} + z \cos^{2}{\left(z \right)} + 2 \sin{\left(z \right)} \cos{\left(z \right)}\right)}{\sin{\left(z \right)}} - \frac{12 \left(- z \sin^{2}{\left(z \right)} + z \cos^{2}{\left(z \right)} + 2 \sin{\left(z \right)} \cos{\left(z \right)}\right) \cos{\left(z \right)}}{\sin^{2}{\left(z \right)}} - \frac{2 \left(4 z \sin{\left(z \right)} \cos{\left(z \right)} + 3 \sin^{2}{\left(z \right)} - 3 \cos^{2}{\left(z \right)}\right)}{\sin{\left(z \right)}} + 2 \sin{\left(z \right)} + \frac{\left(2 z \cos{\left(z \right)} + \sin{\left(z \right)}\right) \left(\frac{2 \cos{\left(z \right)}}{\sin{\left(z \right)}} + \frac{1}{z}\right)}{z} + \frac{8 \left(2 z \cos{\left(z \right)} + \sin{\left(z \right)}\right) \cos{\left(z \right)}}{z \sin{\left(z \right)}} - \frac{6 \left(- z \sin^{2}{\left(z \right)} + z \cos^{2}{\left(z \right)} + 2 \sin{\left(z \right)} \cos{\left(z \right)}\right)}{z \sin{\left(z \right)}} + \frac{3 \left(2 z \cos{\left(z \right)} + \sin{\left(z \right)}\right)}{z^{2}}\right) \sin{\left(\frac{\pi z}{2} \right)}}{z \sin{\left(z \right)}} + \frac{3 \pi \left(2 z \cos{\left(z \right)} + \sin{\left(z \right)}\right) \left(\pi \left(z + \pi\right) \sin{\left(\frac{\pi z}{2} \right)} - 4 \cos{\left(\frac{\pi z}{2} \right)}\right)}{4 z \sin{\left(z \right)}} + \frac{3 \left(\pi \left(z + \pi\right) \cos{\left(\frac{\pi z}{2} \right)} + 2 \sin{\left(\frac{\pi z}{2} \right)}\right) \left(\left(2 z \cos{\left(z \right)} + \sin{\left(z \right)}\right) \left(\frac{2 \cos{\left(z \right)}}{\sin{\left(z \right)}} + \frac{1}{z}\right) + \frac{2 \left(2 z \cos{\left(z \right)} + \sin{\left(z \right)}\right) \cos{\left(z \right)}}{\sin{\left(z \right)}} - \frac{2 \left(- z \sin^{2}{\left(z \right)} + z \cos^{2}{\left(z \right)} + 2 \sin{\left(z \right)} \cos{\left(z \right)}\right)}{\sin{\left(z \right)}} + \frac{2 z \cos{\left(z \right)} + \sin{\left(z \right)}}{z}\right)}{2 z \sin{\left(z \right)}}}{z \sin^{2}{\left(z \right)}}
Gráfico
Derivada de ((z+pi)*sin(pi/2*z))/((z*(sin(z))^2))