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sinx^2/cosx^2

Derivative of sinx^2/cosx^2

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
   2   
sin (x)
-------
   2   
cos (x)
$$\frac{\sin^{2}{\left(x \right)}}{\cos^{2}{\left(x \right)}}$$
  /   2   \
d |sin (x)|
--|-------|
dx|   2   |
  \cos (x)/
$$\frac{d}{d x} \frac{\sin^{2}{\left(x \right)}}{\cos^{2}{\left(x \right)}}$$
Detail solution
  1. Apply the quotient rule, which is:

    and .

    To find :

    1. Let .

    2. Apply the power rule: goes to

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

      1. The derivative of sine is cosine:

      The result of the chain rule is:

    To find :

    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:

    Now plug in to the quotient rule:

  2. Now simplify:


The answer is:

The graph
The first derivative [src]
     3                     
2*sin (x)   2*cos(x)*sin(x)
--------- + ---------------
    3              2       
 cos (x)        cos (x)    
$$\frac{2 \sin^{3}{\left(x \right)}}{\cos^{3}{\left(x \right)}} + \frac{2 \sin{\left(x \right)} \cos{\left(x \right)}}{\cos^{2}{\left(x \right)}}$$
The second derivative [src]
  /                              /         2   \\
  |   2           2         2    |    3*sin (x)||
2*|cos (x) + 3*sin (x) + sin (x)*|1 + ---------||
  |                              |        2    ||
  \                              \     cos (x) //
-------------------------------------------------
                        2                        
                     cos (x)                     
$$\frac{2 \left(\left(\frac{3 \sin^{2}{\left(x \right)}}{\cos^{2}{\left(x \right)}} + 1\right) \sin^{2}{\left(x \right)} + 3 \sin^{2}{\left(x \right)} + \cos^{2}{\left(x \right)}\right)}{\cos^{2}{\left(x \right)}}$$
The third derivative [src]
  /                                                  /         2   \\       
  |                                             2    |    3*sin (x)||       
  |                                        2*sin (x)*|2 + ---------||       
  |      /   2         2   \        2                |        2    ||       
  |    3*\sin (x) - cos (x)/   9*sin (x)             \     cos (x) /|       
4*|1 - --------------------- + --------- + -------------------------|*sin(x)
  |              2                 2                   2            |       
  \           cos (x)           cos (x)             cos (x)         /       
----------------------------------------------------------------------------
                                   cos(x)                                   
$$\frac{4 \cdot \left(\frac{2 \cdot \left(\frac{3 \sin^{2}{\left(x \right)}}{\cos^{2}{\left(x \right)}} + 2\right) \sin^{2}{\left(x \right)}}{\cos^{2}{\left(x \right)}} - \frac{3 \left(\sin^{2}{\left(x \right)} - \cos^{2}{\left(x \right)}\right)}{\cos^{2}{\left(x \right)}} + \frac{9 \sin^{2}{\left(x \right)}}{\cos^{2}{\left(x \right)}} + 1\right) \sin{\left(x \right)}}{\cos{\left(x \right)}}$$
The graph
Derivative of sinx^2/cosx^2