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Math Help - trig steps?

  1. #1
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    Joined
    Feb 2010
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    16

    trig steps?

    what are the steps in this solution? especially the first step.. conjugate?

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  2. #2
    Newbie
    Joined
    Feb 2010
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    16
    i figured it out.. add and subtract 2sin^2(x)cos^2(x) to the numerator..
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