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Derivative of atan(7*x^4)

Function f() - derivative -N order at the point
v

The graph:

from to

Piecewise:

The solution

You have entered [src]
    /   4\
atan\7*x /
$$\operatorname{atan}{\left(7 x^{4} \right)}$$
atan(7*x^4)
The graph
The first derivative [src]
      3  
  28*x   
---------
        8
1 + 49*x 
$$\frac{28 x^{3}}{49 x^{8} + 1}$$
The second derivative [src]
      /           8 \
    2 |      392*x  |
28*x *|3 - ---------|
      |            8|
      \    1 + 49*x /
---------------------
              8      
      1 + 49*x       
$$\frac{28 x^{2} \left(- \frac{392 x^{8}}{49 x^{8} + 1} + 3\right)}{49 x^{8} + 1}$$
The third derivative [src]
     /           8             16 \
     |     2548*x      153664*x   |
56*x*|3 - --------- + ------------|
     |            8              2|
     |    1 + 49*x    /        8\ |
     \                \1 + 49*x / /
-----------------------------------
                     8             
             1 + 49*x              
$$\frac{56 x \left(\frac{153664 x^{16}}{\left(49 x^{8} + 1\right)^{2}} - \frac{2548 x^{8}}{49 x^{8} + 1} + 3\right)}{49 x^{8} + 1}$$