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Math Help - Integration problem

  1. #1
    Junior Member
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    Integration problem

    Hello all,

    I am having problems on the following problem:




    The answer I came up with is this:

    -4xcosx(1/4)sinx

    My Homework is saying it's wrong though, can someone tell me why this is wrong.
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  2. #2
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    Go through the formula for integration by part.
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  3. #3
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    I just went through it again, and came up with the same answer.
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  4. #4
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    integrat 4x*sin(x)dx - Wolfram|Alpha
    Go to this site. Be sure to click "show steps"
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  5. #5
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    Thanks for your help, great site too!
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