1. Not finding help here? Sign up for a free 30min 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!

Proving Limits

  1. Jan 15, 2009 #1
    Let an= ( 2n ) 4-n, for all n greater than or equal to 1
    ( n )

    Prove that sequence an converges to a limit, and find limn->infinityan.
  2. jcsd
  3. Jan 15, 2009 #2
    that was supposed to be

    ( 2n )
    ( n )
  4. Jan 15, 2009 #3
    As in, 2n choose n
  5. Jan 16, 2009 #4


    User Avatar
    Staff Emeritus
    Science Advisor

    [itex]_{2n}C_n[/itex] is a polynomial in n and 4-n, being exponential, goes to 0 faster than any polynomial goes to infinity.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Proving Limits
  1. Proving a limit exists (Replies: 4)