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: Binomially expand function of x/e!

  1. Sep 16, 2010 #1
    1. The problem statement, all variables and given/known data
    (1-e^(-x))^(-1)


    2. Relevant equations
    Binomial theorem


    3. The attempt at a solution
    1+e^(-x)+e^(-2x)...
     
  2. jcsd
  3. Sep 16, 2010 #2
    That looks right, but just add in the constraint that x>0, since e(-x)<1
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook