1/2 - cos(cos(y) + 2)
1/2 - cos(cos(y) + 2)
Differentiate term by term:
The derivative of the constant is zero.
The derivative of a constant times a function is the constant times the derivative of the function.
Let .
The derivative of cosine is negative sine:
Then, apply the chain rule. Multiply by :
Differentiate term by term:
The derivative of cosine is negative sine:
The derivative of the constant is zero.
The result is:
The result of the chain rule is:
So, the result is:
The result is:
Now simplify:
The answer is:
-sin(y)*sin(cos(y) + 2)
2 sin (y)*cos(2 + cos(y)) - cos(y)*sin(2 + cos(y))
/ 2 \ \sin (y)*sin(2 + cos(y)) + 3*cos(y)*cos(2 + cos(y)) + sin(2 + cos(y))/*sin(y)