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Math Help - factoring trig expressions

  1. #1
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    Exclamation factoring trig expressions

    factor the expression and use fundamental identities

    cos^2xsin^2x - cos^2x
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  2. #2
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    Quote Originally Posted by jumpman23 View Post
    factor the expression and use fundamental identities

    cos^2xsin^2x - cos^2x
    \cos^2 x\sin^2 x - \cos^2 x

    =\cos^2 x(\sin^2 x - 1)

    =-\cos^2 x (1 - \sin^2 x)

    Finish it.
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