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