Let .
The derivative of is .
Then, apply the chain rule. Multiply by :
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.
Apply the power rule: goes to
So, the result is:
The result is:
The result of the chain rule is:
Now simplify:
The answer is:
/ 3 \
| 3*x |
3*x*|2 - -------|
| 3|
\ -1 + x /
-----------------
3
-1 + x
/ 3 6 \
| 9*x 9*x |
6*|1 - ------- + ----------|
| 3 2|
| -1 + x / 3\ |
\ \-1 + x / /
----------------------------
3
-1 + x