-x - 3 -------- 3 (x - 1)
(-x - 3)/(x - 1)^3
Apply the quotient rule, which is:
and .
To find :
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:
To find :
Let .
Apply the power rule: goes to
Then, apply the chain rule. Multiply by :
Differentiate term by term:
The derivative of the constant is zero.
Apply the power rule: goes to
The result is:
The result of the chain rule is:
Now plug in to the quotient rule:
Now simplify:
The answer is:
1 3*(-x - 3) - -------- - ---------- 3 4 (x - 1) (x - 1)
/ 2*(3 + x)\ 6*|1 - ---------| \ -1 + x / ----------------- 4 (-1 + x)