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Math Help - trig

  1. #1
    Junior Member
    Joined
    Oct 2008
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    74

    trig

    Can someone help me solve this, I must be doing it wrong by doing a huge product rule?
    2cos(2x)+4sinxcosx=\sqrt{2}

    0\leq x \leq2\pi
    Last edited by oxrigby; November 5th 2008 at 02:20 PM.
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  2. #2
    Junior Member
    Joined
    Oct 2008
    Posts
    74
    i got it now thanks
    Last edited by oxrigby; November 6th 2008 at 04:23 AM.
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