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 upper and lower bounds for n!/m!

  1. Sep 12, 2012 #1
    If n>m>1, find upper and lower bounds for n!/m!

    Answer: upper bound = {[(n+1)^(n+1)]/[(m+1)^(m+1)]}*e^(-(n-m))
    lower bound = [(n^n)/(m^m)]*e^(-(n-m))

    This is from a chapter on finding bounds for sum of series. Can someone please explain how to arrive at the answer? Thanks!
  2. jcsd
  3. Sep 12, 2012 #2


    User Avatar
    Science Advisor

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