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Math Help - Integration

  1. #1
    Member roshanhero's Avatar
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    Integration

    \int_{0}^{L}xSin^2\frac{n\pi x}{L} dx
    Do I have to use only integration by parts to integrate this or are there any other methods as well?
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  2. #2
    A Plied Mathematician
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  3. #3
    MHF Contributor Also sprach Zarathustra's Avatar
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    \int xsin^{2}xdx=\int \frac{1}{2}x(1-cos2x)dx

    \int xcosxdx = \frac{xsin2x}{2}-\int sin2xdx
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