Results 1 to 2 of 2

Thread: Integrating (e^x)(1-x^2)

  1. September 29th 2012, 01:01 PM #1
    Duta
    Duta is offline
    Newbie
    Joined
    Sep 2012
    From
    United Kingdom
    Posts
    2

    Integrating (e^x)(1-x^2)

    What is the integration of ex(1-x2) ?
    Follow Math Help Forum on Facebook and Google+
  2. September 29th 2012, 01:12 PM #2
    Siron
    Siron is offline
    MHF Contributor Siron's Avatar
    Joined
    Jul 2011
    From
    Norway
    Posts
    1,245
    Thanks
    20

    Re: Integrating (e^x)(1-x^2)

    \int e^x(1-x^2)dx = \int (e^x-e^xx^2)dx = \int e^x dx - \int e^xx^2dx = e^x - \int x^2e^xdx

    To calculate \int x^2 e^x dx use integration by parts.
    Follow Math Help Forum on Facebook and Google+
« i swear i'm right but teacher's arguing with me, please help a wounded student )': | Maximizing/Minimizing a function with a nonlinear constraint »

Similar Math Help Forum Discussions

  1. need a little help integrating...
    Posted in the Calculus Forum
    Replies: 9
    Last Post: January 31st 2011, 11:10 AM
  2. [SOLVED] Integrating r^2 exp(-2r/a)
    Posted in the Calculus Forum
    Replies: 7
    Last Post: June 28th 2010, 11:44 AM
  3. Integrating (2x^2 -3)/x(x^2 +4
    Posted in the Calculus Forum
    Replies: 2
    Last Post: March 17th 2010, 06:14 AM
  4. Need help integrating
    Posted in the Calculus Forum
    Replies: 3
    Last Post: October 1st 2009, 04:35 AM
  5. help with integrating this...
    Posted in the Calculus Forum
    Replies: 1
    Last Post: October 2nd 2008, 08:27 PM

Search Tags


/mathhelpforum @mathhelpforum