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))