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Math Help - Integration of Trigo

  1. #1
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    Integration of Trigo

    \int \sin^2(x) \sin (nx) over 0 to pi, n is an integer.
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  2. #2
    Ted
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    Re: Integration of Trigo

    Use sin^2(x)=\frac{1}{2}(1 - cos(2x))
    Expand
    Use cos(A)sin(A)=\frac{1}{2}( sin(A-B) + sin(A+B) )
    Integrate
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  3. #3
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    Re: Integration of Trigo

    Also, look out for special cases for n.
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