Results 1 to 2 of 2

Math Help - Integration Help Please

  1. #1
    Junior Member
    Joined
    Sep 2008
    Posts
    46

    Integration Help Please

    Can anyone help integrate. Can this be done only by taking the integration into parts??

    integral
          t^2e^(-2t)
    Follow Math Help Forum on Facebook and Google+

  2. #2
    Senior Member vincisonfire's Avatar
    Joined
    Oct 2008
    From
    Sainte-Flavie
    Posts
    469
    Thanks
    2
    Awards
    1
    Yes, you should use integration by part.
    *\int t^2e^{-2t} = \frac{-t^2 e^{-2t}}{2} -\int -te^{-2t} =\frac{-t^2 e^{-2t}}{2} +\int te^{-2t}

     \frac{-t^2 e^{-2t}}{2} +\int te^{-2t}=\frac{-t^2 e^{-2t}}{2} +\frac{-te^{-2t}}{2} + \int \frac{e^{-2t}}{2}

     =\frac{-t^2 e^{-2t}}{2} +\frac{-te^{-2t}}{2} + \frac{-e^{-2t}}{4}
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 3
    Last Post: November 3rd 2010, 12:54 AM
  2. Replies: 2
    Last Post: November 2nd 2010, 04:57 AM
  3. Replies: 8
    Last Post: September 2nd 2010, 12:27 PM
  4. Replies: 2
    Last Post: February 19th 2010, 10:55 AM
  5. Replies: 6
    Last Post: May 25th 2009, 06:58 AM

Search Tags


/mathhelpforum @mathhelpforum