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Math Help - Integral help

  1. #1
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    Integral help

    How do you integrate \int cos^2(x) dx
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  2. #2
    Rhymes with Orange Chris L T521's Avatar
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    Quote Originally Posted by looseenz2 View Post
    How do you integrate \int cos^2(x) dx
    Hint: \cos^2x=\tfrac{1}{2}+\tfrac{1}{2}\cos\!\left(2x\ri  ght)

    Can you proceed?
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  3. #3
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    Ahh yes, I see it now. Thank you! =]
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