5 ----------- 7 ___ 5 7*\/ x *x
d / 5 \ --|-----------| dx| 7 | | ___ 5| \7*\/ x *x /
The derivative of a constant times a function is the constant times the derivative of the function.
Let .
Apply the power rule: goes to
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 product rule:
; to find :
Apply the power rule: goes to
; to find :
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Apply the power rule: goes to
The result of the chain rule is:
The result is:
So, the result is:
The result of the chain rule is:
So, the result is:
Now simplify:
The answer is:
/ 15/2 \ | 49*x 4 7/2| 5*|- -------- - 35*x *x | \ 2 / --------------------------- 17 49*x