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: Solve the limit

  1. Sep 11, 2012 #1
    1. The problem statement, all variables and given/known data

    Solve the limit: lim n→∞ (√(n^2+1) - n)

    2. Relevant equations

    3. The attempt at a solution

    I am very lost on how to start so I do not have anything
  2. jcsd
  3. Sep 11, 2012 #2


    User Avatar
    Science Advisor
    Homework Helper

    Multiplying by 1 in the form of (sqrt(n^2+1)+n)/(sqrt(n^2+1)+n) is probably the easiest way to go. There's other ways to do it. Try that one first.
  4. Sep 11, 2012 #3
    Have you tried multiplying by the conjugate?

    edit: too slow.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook