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!

Integrating partial fractions

  1. Sep 17, 2009 #1
    Hello :smile:

    I've been stuck on this question for almost 3 hours now, and I still have no idea what to do. We haven't done a question like this in class, although we have done integration with partial fractions.

    1. The problem statement, all variables and given/known data


    http://img43.imageshack.us/img43/4110/34519231.jpg [Broken]

    2. Relevant equations

    3. The attempt at a solution
    http://img230.imageshack.us/img230/7321/21305382.jpg [Broken]

    http://img230.imageshack.us/img230/4774/89099153.jpg [Broken]

    If I make A and B equal 0, I get C = 6. Then I just end up with the same integral as I started with.

    I'd really appreciate any help with this. :smile:

    Thank you
    Last edited by a moderator: May 4, 2017
  2. jcsd
  3. Sep 17, 2009 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member

    No need for partial fractions. Try letting u = 2x - 1.
  4. Sep 18, 2009 #3
    I was convinced it had something to do with partial fractions. :redface:

    I've just done the u substitution thingy and 4/3, which is the correct answer.

    Thank you very much for your help. :smile:
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Integrating partial fractions