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Homework Help: Solving for theta?

  1. Jan 14, 2017 #1
    1. The problem statement, all variables and given/known data
    2bcosθ=2sinθ-1 where b is a constant

    2. Relevant equations

    3. The attempt at a solution
    I squared both sides, foiled, and changed the cosθ2 to a 1-sin2θ. Was told I need to solve a quadratic for sine? I don't see it.
  2. jcsd
  3. Jan 14, 2017 #2


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    How can you not end up with a quadratic in ##\sin \theta##?
  4. Jan 14, 2017 #3
    Awesome, got it. Thanks!
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