Results 1 to 2 of 2

Math Help - glb and lub

  1. March 16th 2010, 10:35 AM #1
    jpquinn91
    jpquinn91 is offline
    Junior Member
    Joined
    Oct 2009
    Posts
    48

    glb and lub

    How can I find the glb and lub of:

    (n^2+17n)^1/2 -(n^2+8n)^1/2

    Thanks

    Sorry, dont know if these are standard abbreviations but i mean greatest lower bound and least upper bound
    Last edited by jpquinn91; March 16th 2010 at 02:15 PM.
    Follow Math Help Forum on Facebook and Google+
  2. March 18th 2010, 02:58 PM #2
    chiph588@
    chiph588@ is offline
    MHF Contributor chiph588@'s Avatar
    Joined
    Sep 2008
    From
    Champaign, Illinois
    Posts
    1,163
    (n^2+17n)^1/2 -(n^2+8n)^1/2 obtains its global minimum at n=-17

    to find the lub, find the limit as n goes to infinity.
    Follow Math Help Forum on Facebook and Google+
« Multiplicative Order | average order »

Search Tags


/mathhelpforum @mathhelpforum