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: Partial fraction decomposition

  1. Mar 29, 2012 #1
    1. The problem statement, all variables and given/known data

    [tex] \frac{2e^3}{((s^2)-6s+9)*s^3} [/tex]

    you can factorize the denominator into s,s,s,(s-3),(s-3)

    that gives you 5 residuals.

    the first 3 should all be the same value but that's apparently not correct, so where

    am I going wrong?
  2. jcsd
  3. Mar 29, 2012 #2


    User Avatar
    Science Advisor
    Homework Helper

    Hi Ry122! :smile:
    Your denominators need to be s s2 s3 s-3 and (s-3)2 :wink:
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook