Results 1 to 3 of 3

Thread: Need Help Integrating This!

  1. November 30th 2009, 07:20 PM #1
    Porter1
    Porter1 is offline
    Junior Member
    Joined
    Nov 2009
    Posts
    25

    Need Help Integrating This!

    ∫(u)->(1) (y1*e^(-y1)) - (u*e^(-y1)) dy1

    I forgot a lot of my calculus and appreciate anyone who can integrate this!
    Last edited by CaptainBlack; February 4th 2010 at 09:38 AM.
    Follow Math Help Forum on Facebook and Google+
  2. November 30th 2009, 07:33 PM #2
    felper
    felper is offline
    Member
    Joined
    Feb 2009
    From
    stgo
    Posts
    84
    I dont understand your notation, but, i can help you with this integral

    \int x e^{-x}dx=\int x (-e^{-x})'=-xe^{-x}+\int e^{-x}dx=-xe^{-x}-e^{-x}+C
    Follow Math Help Forum on Facebook and Google+
  3. February 4th 2010, 08:06 AM #3
    Krizalid
    Krizalid is offline
    Math Engineering Student
    Krizalid's Avatar
    Joined
    Mar 2007
    From
    Santiago, Chile
    Posts
    3,654
    Thanks
    5
    Thanks to felper, people can see what the OP posted.

    People shouldn't delete their own problems, it could be hepful for other ones.
    Follow Math Help Forum on Facebook and Google+
« D'Alembert's ratio question | Why does this limit not exist »

Similar Math Help Forum Discussions

  1. need help on integrating this
    Posted in the Calculus Forum
    Replies: 3
    Last Post: June 4th 2010, 06:29 AM
  2. Integrating
    Posted in the Calculus Forum
    Replies: 4
    Last Post: June 2nd 2010, 11:57 AM
  3. integrating
    Posted in the Calculus Forum
    Replies: 1
    Last Post: May 31st 2010, 02:18 PM
  4. integrating e
    Posted in the Calculus Forum
    Replies: 3
    Last Post: April 27th 2010, 11:03 PM
  5. Integrating (2x^2 -3)/x(x^2 +4
    Posted in the Calculus Forum
    Replies: 2
    Last Post: March 17th 2010, 06:14 AM

Search Tags


/mathhelpforum @mathhelpforum