# Homework Help: L'Hopital Rule - Limits

1. Oct 24, 2012

### planauts

1. The problem statement, all variables and given/known data
http://puu.sh/1irk2 [Broken]

2. Relevant equations

3. The attempt at a solution
I am having trouble doing this question. I tried doing the L'Hopital but didn't work. When I subbed in 0 in the function, I got 0/0.

first time:
I got that: http://puu.sh/1iroz [Broken]

It still gave me the indeterminate form (0/0). Could someone give me a hint on solving this limit, I know the answer is 0 (used wolframalpha) but I am unsure why it is.

Thanks

Last edited by a moderator: May 6, 2017
2. Oct 24, 2012

### lurflurf

Use L'Hopital's rulke again on the new limit.

3. Oct 24, 2012

### Dick

Use algebra to simplify your answer. I don't think the limit is zero.

Last edited by a moderator: May 6, 2017
4. Oct 24, 2012

### FOIWATER

I also did not get zero

I would not suggest using L'hospital's rule again, it can be simplified to give you a limit which is not zero I believe

5. Oct 24, 2012

### planauts

Nevermind, you are right. It is -1. I redid it, when I simplified it, all the x's that led to the evil division of zero disappeared.

Thanks