Mister Exam

Derivative of y=sin²x³

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

The graph:

from to

Piecewise:

The solution

You have entered [src]
   8   
sin (x)
sin8(x)\sin^{8}{\left(x \right)}
sin(x)^8
Detail solution
  1. Let u=sin(x)u = \sin{\left(x \right)}.

  2. Apply the power rule: u8u^{8} goes to 8u78 u^{7}

  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:

    8sin7(x)cos(x)8 \sin^{7}{\left(x \right)} \cos{\left(x \right)}


The answer is:

8sin7(x)cos(x)8 \sin^{7}{\left(x \right)} \cos{\left(x \right)}

The graph
02468-8-6-4-2-10105-5
The first derivative [src]
     7          
8*sin (x)*cos(x)
8sin7(x)cos(x)8 \sin^{7}{\left(x \right)} \cos{\left(x \right)}
The second derivative [src]
     6    /     2           2   \
8*sin (x)*\- sin (x) + 7*cos (x)/
8(sin2(x)+7cos2(x))sin6(x)8 \left(- \sin^{2}{\left(x \right)} + 7 \cos^{2}{\left(x \right)}\right) \sin^{6}{\left(x \right)}
The third derivative [src]
      5    /        2            2   \       
16*sin (x)*\- 11*sin (x) + 21*cos (x)/*cos(x)
16(11sin2(x)+21cos2(x))sin5(x)cos(x)16 \left(- 11 \sin^{2}{\left(x \right)} + 21 \cos^{2}{\left(x \right)}\right) \sin^{5}{\left(x \right)} \cos{\left(x \right)}
The graph
Derivative of y=sin²x³