Mister Exam

Derivative of tg^4x+2x

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
   4         
tan (x) + 2*x
$$2 x + \tan^{4}{\left(x \right)}$$
tan(x)^4 + 2*x
Detail solution
  1. Differentiate term by term:

    1. Let .

    2. Apply the power rule: goes to

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

      1. Rewrite the function to be differentiated:

      2. Apply the quotient rule, which is:

        and .

        To find :

        1. The derivative of sine is cosine:

        To find :

        1. The derivative of cosine is negative sine:

        Now plug in to the quotient rule:

      The result of the chain rule is:

    4. The derivative of a constant times a function is the constant times the derivative of the function.

      1. Apply the power rule: goes to

      So, the result is:

    The result is:

  2. Now simplify:


The answer is:

The graph
The first derivative [src]
       3    /         2   \
2 + tan (x)*\4 + 4*tan (x)/
$$\left(4 \tan^{2}{\left(x \right)} + 4\right) \tan^{3}{\left(x \right)} + 2$$
The second derivative [src]
     2    /       2   \ /         2   \
4*tan (x)*\1 + tan (x)/*\3 + 5*tan (x)/
$$4 \left(\tan^{2}{\left(x \right)} + 1\right) \left(5 \tan^{2}{\left(x \right)} + 3\right) \tan^{2}{\left(x \right)}$$
The third derivative [src]
                /                           2                           \       
  /       2   \ |     4        /       2   \          2    /       2   \|       
8*\1 + tan (x)/*\2*tan (x) + 3*\1 + tan (x)/  + 10*tan (x)*\1 + tan (x)//*tan(x)
$$8 \left(\tan^{2}{\left(x \right)} + 1\right) \left(3 \left(\tan^{2}{\left(x \right)} + 1\right)^{2} + 10 \left(\tan^{2}{\left(x \right)} + 1\right) \tan^{2}{\left(x \right)} + 2 \tan^{4}{\left(x \right)}\right) \tan{\left(x \right)}$$