Apply the product rule:
; to find :
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
The derivative of sine is cosine:
The result of the chain rule is:
; to find :
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
The derivative of is itself.
The result of the chain rule is:
The result is:
Now simplify:
The answer is:
x / 2 \ - 2 | 2 15*sin (x) | 2 sin (x)*|12*cos (x) - ---------- + 4*cos(x)*sin(x)|*e \ 4 /
x / 3 \ - |sin (x) / 2 2 \ / 2 2 \ 2 | 2 |------- - 8*\- 3*cos (x) + 5*sin (x)/*cos(x) - 6*\sin (x) - 3*cos (x)/*sin(x) + 3*sin (x)*cos(x)|*e *sin(x) \ 8 /