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The derivative of the function/ cosx^4

Derivative of cosx^4

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

The graph:

from to

Piecewise:

The solution

You have entered [src] 
   4   
cos (x)
$$\cos^{4}{\left(x \right)}$$ 
cos(x)^4
Detail solution

  1. Let .

  2. Apply the power rule: goes to

  3. Then, apply the chain rule. Multiply by :

    1. The derivative of cosine is negative sine:

    The result of the chain rule is:

The answer is:

The graph
Plot the graph f(x)
Plot the graph f'(x)
The first derivative [src] 
      3          
-4*cos (x)*sin(x)
$$- 4 \sin{\left(x \right)} \cos^{3}{\left(x \right)}$$
Simplify
The second derivative [src] 
     2    /     2           2   \
4*cos (x)*\- cos (x) + 3*sin (x)/
$$4 \left(3 \sin^{2}{\left(x \right)} - \cos^{2}{\left(x \right)}\right) \cos^{2}{\left(x \right)}$$
Simplify
The third derivative [src] 
  /       2           2   \              
8*\- 3*sin (x) + 5*cos (x)/*cos(x)*sin(x)
$$8 \left(- 3 \sin^{2}{\left(x \right)} + 5 \cos^{2}{\left(x \right)}\right) \sin{\left(x \right)} \cos{\left(x \right)}$$
Simplify
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