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1/(sin(x))^2

Derivative of 1/(sin(x))^2

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
   1   
-------
   2   
sin (x)
1sin2(x)\frac{1}{\sin^{2}{\left(x \right)}}
1/(sin(x)^2)
Detail solution
  1. Let u=sin2(x)u = \sin^{2}{\left(x \right)}.

  2. Apply the power rule: 1u\frac{1}{u} goes to 1u2- \frac{1}{u^{2}}

  3. Then, apply the chain rule. Multiply by ddxsin2(x)\frac{d}{d x} \sin^{2}{\left(x \right)}:

    1. Let u=sin(x)u = \sin{\left(x \right)}.

    2. Apply the power rule: u2u^{2} goes to 2u2 u

    3. Then, apply the chain rule. Multiply by ddxsin(x)\frac{d}{d x} \sin{\left(x \right)}:

      1. The derivative of sine is cosine:

        ddxsin(x)=cos(x)\frac{d}{d x} \sin{\left(x \right)} = \cos{\left(x \right)}

      The result of the chain rule is:

      2sin(x)cos(x)2 \sin{\left(x \right)} \cos{\left(x \right)}

    The result of the chain rule is:

    2cos(x)sin3(x)- \frac{2 \cos{\left(x \right)}}{\sin^{3}{\left(x \right)}}


The answer is:

2cos(x)sin3(x)- \frac{2 \cos{\left(x \right)}}{\sin^{3}{\left(x \right)}}

The graph
02468-8-6-4-2-1010-50000005000000
The first derivative [src]
  -2*cos(x)   
--------------
          2   
sin(x)*sin (x)
2cos(x)sin(x)sin2(x)- \frac{2 \cos{\left(x \right)}}{\sin{\left(x \right)} \sin^{2}{\left(x \right)}}
The second derivative [src]
  /         2   \
  |    3*cos (x)|
2*|1 + ---------|
  |        2    |
  \     sin (x) /
-----------------
        2        
     sin (x)     
2(1+3cos2(x)sin2(x))sin2(x)\frac{2 \left(1 + \frac{3 \cos^{2}{\left(x \right)}}{\sin^{2}{\left(x \right)}}\right)}{\sin^{2}{\left(x \right)}}
The third derivative [src]
   /         2   \       
   |    3*cos (x)|       
-8*|2 + ---------|*cos(x)
   |        2    |       
   \     sin (x) /       
-------------------------
            3            
         sin (x)         
8(2+3cos2(x)sin2(x))cos(x)sin3(x)- \frac{8 \left(2 + \frac{3 \cos^{2}{\left(x \right)}}{\sin^{2}{\left(x \right)}}\right) \cos{\left(x \right)}}{\sin^{3}{\left(x \right)}}
The graph
Derivative of 1/(sin(x))^2