1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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.
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook