Results 1 to 2 of 2

Thread: Integral of xf(x)dx

  1. #1
    Junior Member
    Oct 2009

    Question Integral of xf(x)dx

    I tried doing integration by parts, but I end up getting the wrong answer, help?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor chiph588@'s Avatar
    Sep 2008
    Champaign, Illinois
    Let $\displaystyle u=x\implies du=dx $ and $\displaystyle dv=f(x)dx\implies v=\int f(x)dx $.

    So we get $\displaystyle \int xf(x)dx = x\int f(x)dx -\iint f(x)dx dx$.

    Is this the answer you're looking for?
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 2
    Last Post: Aug 31st 2010, 07:38 AM
  2. Replies: 1
    Last Post: Jun 2nd 2010, 02:25 AM
  3. Replies: 0
    Last Post: May 9th 2010, 01:52 PM
  4. [SOLVED] Line integral, Cauchy's integral formula
    Posted in the Differential Geometry Forum
    Replies: 3
    Last Post: Sep 15th 2009, 01:28 PM
  5. Replies: 0
    Last Post: Sep 10th 2008, 07:53 PM

Search tags for this page

Search Tags

/mathhelpforum @mathhelpforum