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Math Help - improper integral involving e

  1. #1
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    improper integral involving e

    See attachment.
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  2. #2
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    You can find \int xe^x~dx using integration by parts.

    Do you know this method?
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  3. #3
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    Quote Originally Posted by pickslides View Post
    You can find \int xe^x~dx using integration by parts.

    Do you know this method?
    yah its like uv- integral of vdu

    so is it xe^x - e^x ?
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  4. #4
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    Quote Originally Posted by WartonMorton View Post
    yah its like uv- integral of vdu

    so is it xe^x - e^x ?
    Sounds good.
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  5. #5
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    so thus the improper integral is -1 ?
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  6. #6
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    That's what I get.
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