y ---------- log(y) + 1
y/(log(y) + 1)
Apply the quotient rule, which is:
and .
To find :
Apply the power rule: goes to
To find :
Differentiate term by term:
The derivative of the constant is zero.
The derivative of is .
The result is:
Now plug in to the quotient rule:
The answer is:
1 1 ---------- - ------------- log(y) + 1 2 (log(y) + 1)
2 -1 + ---------- 1 + log(y) --------------- 2 y*(1 + log(y))
6 1 - ------------- 2 (1 + log(y)) ----------------- 2 2 y *(1 + log(y))