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Math Help - Please help me with integration by parts

  1. #1
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    Please help me with integration by parts


    evaluate the integral by using integration by parts
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  2. #2
    Rhymes with Orange Chris L T521's Avatar
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    Quote Originally Posted by yang03265 View Post

    evaluate the integral by using integration by parts
    Recall that the IBP formula is \int u\,dv=uv-\int v\,du

    Let u=x and \,dv=\cos^2x\,dx.

    I leave the computation work for you to do, but take note that \cos^2x=\tfrac{1}{2}\left(1+\cos\!\left(2x\right)\  right).

    Can you try to take it from here?
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