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Math Help - Need Help Integrating This!

  1. #1
    Junior Member
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    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 10:38 AM.
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  2. #2
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    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
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  3. #3
    Math Engineering Student
    Krizalid's Avatar
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    Thanks to felper, people can see what the OP posted.

    People shouldn't delete their own problems, it could be hepful for other ones.
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