Limit Problem

1. Dec 8, 2005

FrostScYthe

Hi, I did this limit, I know what it is by intuition, I just don't know how to mathematically calculate it.

lim 3^(2x) - 1
x->-inf ---------- = -1
3^(2x) + 1

2. Dec 8, 2005

tmc

use l'hopital's rule

3. Dec 8, 2005

hypermorphism

What is the limit as (x -> -infty) of 3x ?