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Math Help - roots

  1. #1
    Senior Member
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    Oct 2008
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    roots

    Determine the roots for the equation -3 sin θ -1 = 1 between 0 and 360

    a/41.8 and 138.2
    b/138.2 and 221.8
    c/221.8 and 318.2
    d/138.2 and 318.2
    e/221.8 and 318.2
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  2. #2
    MHF Contributor
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    Re :

    -3sin\theta=2

     <br />
sin\theta=-2/3<br />
    The angle is negative , hence it can be either in the third or fourth quadrant .
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