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: Find limit

  1. Aug 4, 2010 #1
    1. The problem statement, all variables and given/known data

    lim x->5+

    3x/(5-x)


    2. Relevant equations



    3. The attempt at a solution
    Is this a straight forward solution,
    -infinity?
    Because 3*5=15, and if x approaches 5 from the positive side, it means that (5-x)=-0.000000000001
    So, 15/-000000000000.1 = -infinity
     
  2. jcsd
  3. Aug 4, 2010 #2
    yep, that's right. I don't know why the somebody chose to make such a trivial example into a problem, but whatever.
     
  4. Aug 4, 2010 #3
    I expected to have some tricks in this problem...
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook