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