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Trig equality

  1. Nov 21, 2011 #1
    1. The problem statement, all variables and given/known data

    I'm stuck on a question that results in this equality

    sin 2x = sin 2y

    how do I solve that for x or y?
    the only identity is the double angle one I can use I think but I don't know how that would help.

    2. Relevant equations



    3. The attempt at a solution
     
  2. jcsd
  3. Nov 21, 2011 #2

    LCKurtz

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    [itex]2x = 2y + n\pi[/itex]
     
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