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Equation with trig

  1. Oct 28, 2005 #1
    How do you solve:

    600cosA = xcos35
    600sinA - 100 = xsin35

    The answer is supposed to be 42.9 or 90 - 42.9 for A in degrees.

    That equation might not be right though because I came up with it for Physics.
  2. jcsd
  3. Oct 28, 2005 #2


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    HINT: Divide one equation by the other to eliminate x.
  4. Nov 7, 2010 #3
    Solve for x in one equation then plug that into x for the other equation. Once you eliminate the x you should be left with only the variable A and you should be able to solve it.
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