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