Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Differentiate term by term:
Apply the power rule: goes to
The derivative of the constant is zero.
The result is:
The result of the chain rule is:
Now simplify:
The answer is:
2
3*x
-------------
________
/ 3
2*\/ x - 1
/ 3 \
| 3*x |
3*x*|1 - -----------|
| / 3\|
\ 4*\-1 + x //
---------------------
_________
/ 3
\/ -1 + x
/ 3 6 \
| 9*x 27*x |
3*|1 - ----------- + ------------|
| / 3\ 2|
| 2*\-1 + x / / 3\ |
\ 8*\-1 + x / /
----------------------------------
_________
/ 3
\/ -1 + x