Apply the product rule:
; to find :
The derivative of a constant times a function is the constant times the derivative of the function.
Apply the power rule: goes to
So, the result is:
; to find :
Rewrite the function to be differentiated:
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 csc(x)*e - x*cot(x)*csc(x)*e
/ / 2 \\ 2 \-2*cot(x) + x*\1 + 2*cot (x)//*csc(x)*e
/ 2 / 2 \ \ 2 \3 + 6*cot (x) - x*\5 + 6*cot (x)/*cot(x)/*csc(x)*e