- #1
Krushnaraj Pandya
Gold Member
- 697
- 73
Homework Statement
## \lim x-0 \frac {xcosx-log(1+x)}{x^2}##
Homework Equations
##\frac{log(1+x)}{x}=1## ...(i)
The Attempt at a Solution
Using (i) we can write numerator as xcosx-x, cancelling x from denominator we have cosx-1/x, this is 0/0 form so we can use LHR which gives us -sinx/1 but this gives an incorrect value for the limit. Is there some technicality I'm overlooking about applying LHR?