Mister Exam

Other calculators

Derivative of sqrt(1+sin^2(x))

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
   _____________
  /        2    
\/  1 + sin (x) 
$$\sqrt{\sin^{2}{\left(x \right)} + 1}$$
sqrt(1 + sin(x)^2)
Detail solution
  1. Let .

  2. Apply the power rule: goes to

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

    1. Differentiate term by term:

      1. The derivative of the constant is zero.

      2. Let .

      3. Apply the power rule: goes to

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

        1. The derivative of sine is cosine:

        The result of the chain rule is:

      The result is:

    The result of the chain rule is:

  4. Now simplify:


The answer is:

The graph
The first derivative [src]
 cos(x)*sin(x)  
----------------
   _____________
  /        2    
\/  1 + sin (x) 
$$\frac{\sin{\left(x \right)} \cos{\left(x \right)}}{\sqrt{\sin^{2}{\left(x \right)} + 1}}$$
The second derivative [src]
                       2       2   
   2         2      cos (x)*sin (x)
cos (x) - sin (x) - ---------------
                             2     
                      1 + sin (x)  
-----------------------------------
             _____________         
            /        2             
          \/  1 + sin (x)          
$$\frac{- \sin^{2}{\left(x \right)} + \cos^{2}{\left(x \right)} - \frac{\sin^{2}{\left(x \right)} \cos^{2}{\left(x \right)}}{\sin^{2}{\left(x \right)} + 1}}{\sqrt{\sin^{2}{\left(x \right)} + 1}}$$
The third derivative [src]
/           2             2            2       2   \              
|      3*cos (x)     3*sin (x)    3*cos (x)*sin (x)|              
|-4 - ----------- + ----------- + -----------------|*cos(x)*sin(x)
|            2             2                     2 |              
|     1 + sin (x)   1 + sin (x)     /       2   \  |              
\                                   \1 + sin (x)/  /              
------------------------------------------------------------------
                            _____________                         
                           /        2                             
                         \/  1 + sin (x)                          
$$\frac{\left(-4 + \frac{3 \sin^{2}{\left(x \right)}}{\sin^{2}{\left(x \right)} + 1} - \frac{3 \cos^{2}{\left(x \right)}}{\sin^{2}{\left(x \right)} + 1} + \frac{3 \sin^{2}{\left(x \right)} \cos^{2}{\left(x \right)}}{\left(\sin^{2}{\left(x \right)} + 1\right)^{2}}\right) \sin{\left(x \right)} \cos{\left(x \right)}}{\sqrt{\sin^{2}{\left(x \right)} + 1}}$$