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y=(arctg(7*x+9))/(8*x^2-5)

Derivada de y=(arctg(7*x+9))/(8*x^2-5)

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Gráfico:

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Solución

Ha introducido [src]
atan(7*x + 9)
-------------
      2      
   8*x  - 5  
$$\frac{\operatorname{atan}{\left(7 x + 9 \right)}}{8 x^{2} - 5}$$
atan(7*x + 9)/(8*x^2 - 5)
Gráfica
Primera derivada [src]
             7                16*x*atan(7*x + 9)
--------------------------- - ------------------
/             2\ /   2    \                2    
\1 + (7*x + 9) /*\8*x  - 5/      /   2    \     
                                 \8*x  - 5/     
$$- \frac{16 x \operatorname{atan}{\left(7 x + 9 \right)}}{\left(8 x^{2} - 5\right)^{2}} + \frac{7}{\left(8 x^{2} - 5\right) \left(\left(7 x + 9\right)^{2} + 1\right)}$$
Segunda derivada [src]
  /                                                       /           2  \              \
  |                                                       |       32*x   |              |
  |                                                     8*|-1 + ---------|*atan(9 + 7*x)|
  |                                                       |             2|              |
  |     49*(9 + 7*x)                112*x                 \     -5 + 8*x /              |
2*|- ----------------- - ---------------------------- + --------------------------------|
  |                  2   /             2\ /        2\                      2            |
  |  /             2\    \1 + (9 + 7*x) /*\-5 + 8*x /              -5 + 8*x             |
  \  \1 + (9 + 7*x) /                                                                   /
-----------------------------------------------------------------------------------------
                                                2                                        
                                        -5 + 8*x                                         
$$\frac{2 \left(- \frac{112 x}{\left(8 x^{2} - 5\right) \left(\left(7 x + 9\right)^{2} + 1\right)} - \frac{49 \left(7 x + 9\right)}{\left(\left(7 x + 9\right)^{2} + 1\right)^{2}} + \frac{8 \left(\frac{32 x^{2}}{8 x^{2} - 5} - 1\right) \operatorname{atan}{\left(7 x + 9 \right)}}{8 x^{2} - 5}\right)}{8 x^{2} - 5}$$
Tercera derivada [src]
  /    /                 2 \           /           2  \             /           2  \                                              \
  |    |      4*(9 + 7*x)  |           |       32*x   |             |       16*x   |                                              |
  |343*|-1 + --------------|       168*|-1 + ---------|       768*x*|-1 + ---------|*atan(9 + 7*x)                                |
  |    |                  2|           |             2|             |             2|                                              |
  |    \     1 + (9 + 7*x) /           \     -5 + 8*x /             \     -5 + 8*x /                        2352*x*(9 + 7*x)      |
2*|------------------------- + ---------------------------- - ------------------------------------ + -----------------------------|
  |                    2       /             2\ /        2\                          2                               2            |
  |    /             2\        \1 + (9 + 7*x) /*\-5 + 8*x /               /        2\                /             2\  /        2\|
  \    \1 + (9 + 7*x) /                                                   \-5 + 8*x /                \1 + (9 + 7*x) / *\-5 + 8*x //
-----------------------------------------------------------------------------------------------------------------------------------
                                                                     2                                                             
                                                             -5 + 8*x                                                              
$$\frac{2 \left(\frac{2352 x \left(7 x + 9\right)}{\left(8 x^{2} - 5\right) \left(\left(7 x + 9\right)^{2} + 1\right)^{2}} - \frac{768 x \left(\frac{16 x^{2}}{8 x^{2} - 5} - 1\right) \operatorname{atan}{\left(7 x + 9 \right)}}{\left(8 x^{2} - 5\right)^{2}} + \frac{343 \left(\frac{4 \left(7 x + 9\right)^{2}}{\left(7 x + 9\right)^{2} + 1} - 1\right)}{\left(\left(7 x + 9\right)^{2} + 1\right)^{2}} + \frac{168 \left(\frac{32 x^{2}}{8 x^{2} - 5} - 1\right)}{\left(8 x^{2} - 5\right) \left(\left(7 x + 9\right)^{2} + 1\right)}\right)}{8 x^{2} - 5}$$
Gráfico
Derivada de y=(arctg(7*x+9))/(8*x^2-5)