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: Real Analysis: convergence and divergence

  1. Apr 13, 2010 #1
    1. The problem statement, all variables and given/known data
    Suppose [tex]\sum n[/tex] converges and an is greater than 0 for all n. Show that the sum of 1/an diverges.

    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Apr 13, 2010 #2

    LCKurtz

    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    I assume you mean Σan.

    What are your thoughts? What do you know about an? What have you tried?
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook