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.
Differentiate term by term:
Apply the power rule: goes to
The derivative of the constant is zero.
The result is:
So, the result is:
The result of the chain rule is:
Now simplify:
The answer is:
/ ___ _______\
|\/ 2 *\/ y - 2 |
|---------------|
\ 2 /
-----------------
2*(y - 2)
___
-\/ 2
-------------
3/2
8*(-2 + y)