/x\ 13*sin|-| \2/ --------- 5
13*sin(x/2)/5
The derivative of a constant times a function is the constant times the derivative of the function.
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:
So, the result is:
The answer is:
/x\ 13*cos|-| \2/ --------- 10
/x\ -13*sin|-| \2/ ---------- 20