2 (sin(2*x) + 1)
d / 2\ --\(sin(2*x) + 1) / dx
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Differentiate term by term:
Let .
The derivative of sine is cosine:
Then, apply the chain rule. Multiply by :
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:
The result of the chain rule is:
The derivative of the constant is zero.
The result is:
The result of the chain rule is:
Now simplify:
The answer is:
4*(sin(2*x) + 1)*cos(2*x)
/ 2 \ 8*\cos (2*x) - (1 + sin(2*x))*sin(2*x)/
-16*(1 + 4*sin(2*x))*cos(2*x)