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Math Help - using identities to figure out integration

  1. #1
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    using identities to figure out integration

    Use the trigonometric identity cos2x=1-2sin^2x to figure out \int sin^2x dx

    having problems with this one. thank you
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  2. #2
    Super Member 11rdc11's Avatar
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    Quote Originally Posted by jvignacio View Post
    Use the trigonometric identity cos2x=1-2sin^2x to figure out \int sin^2x dx

    having problems with this one. thank you

    \int \sin^2{x}dx = \int \frac{1 - \cos{2x}}{2}dx

    The second integral easier to do
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  3. #3
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    Quote Originally Posted by 11rdc11 View Post
    \int \sin^2{x}dx = \int \frac{1 - \cos{2x}}{2}dx

    The second integral easier to do
    thank you ill give it a try
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