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Homework Help: Limits: Find (in terms of the constant a)

  1. Sep 11, 2010 #1
    1. The problem statement, all variables and given/known data
    Find (in terms of the constant a)

    lim (√8(a+h) - √8a)/h
    h=>0

    2. Relevant equations



    3. The attempt at a solution

    I tried a few ways of simplifying the numerator and trying to cancel out the h's but each time I try it doesn't come out right at all or I still have the variable h floating around somewhere
     
  2. jcsd
  3. Sep 11, 2010 #2

    jgens

    User Avatar
    Gold Member

    Multiply the top and bottom by [8(a+h)]1/2+[8a]1/2.
     
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