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Math Help - [SOLVED] Trig Equation

  1. #1
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    [SOLVED] Trig Equation

    \sin(2\theta)=\sqrt{2}\cos\theta

    Can someone get me started?? Thanks!
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  2. #2
    Super Member bigwave's Avatar
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    Quote Originally Posted by spoken428 View Post
    \sin(2\theta)=\sqrt{2}\cos\theta

    Can someone get me started?? Thanks!
    use the double angle formula

    sin(2\theta) = 2sin\theta\cos\theta

    see the magic???
    Last edited by bigwave; December 3rd 2009 at 07:36 PM. Reason: spelling
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  3. #3
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    Dang! I just did like 10 with the double angle..they added the square root here and it threw me off! Thanks!
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