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Homework Help: Limit Calc Problem

  1. Dec 8, 2005 #1
    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. jcsd
  3. Dec 8, 2005 #2

    tmc

    User Avatar

    use l'hopital's rule
     
  4. Dec 8, 2005 #3
    What is the limit as (x -> -infty) of 3x ?
     
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