Apply the product rule:
; to find :
Let .
The derivative of is itself.
Then, apply the chain rule. Multiply by :
Apply the power rule: goes to
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 sine is cosine:
The result of the chain rule is:
The result is:
Now simplify:
The answer is:
/ 2\ 2 / 2 2 2 / 2\ \ \x / 2*sin (x)*\- 2*sin (x) + 6*cos (x) + sin (x)*\1 + 2*x / + 8*x*cos(x)*sin(x)/*e
/ 2\ / / 2 2 \ 3 / 2\ / 2 2 \ 2 / 2\ \ \x / 4*\- 2*\- 3*cos (x) + 5*sin (x)/*cos(x) + x*sin (x)*\3 + 2*x / - 6*x*\sin (x) - 3*cos (x)/*sin(x) + 6*sin (x)*\1 + 2*x /*cos(x)/*e *sin(x)