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Math Help - Integral of (sinx+cosx)^2

  1. #1
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    Integral of (sinx+cosx)^2

    How do you integrate this?
    (sinx+cosx)^2
    Please show steps.
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  2. #2
    Super Member
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    Quote Originally Posted by Johnt447 View Post
    How do you integrate this?
    (sinx+cosx)^2
    Please show steps.
    Expand to get:
    \sin^2{x} + 2\sin{x}\cos{x} + \cos^2{x} = 1 + \sin{2x}

    Surely you know what to do next?
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  3. #3
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    Quote Originally Posted by Chop Suey View Post
    Expand to get:
    \sin^2{x} + 2\sin{x}\cos{x} + \cos^2{x} = 1 + \sin{2x}

    Surely you know what to do next?
    yeah I do cheers, it's so obvious now lol.
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