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23 August, 15:01

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7 sin2x - 14 sin x + 2 = - 5

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  1. 23 August, 15:02
    0
    sin^2 x = 0

    sin x = 0

    The unit circle gives - - > x = 0, x=180, and x=360

    Answers for (0,360):

    0,180, 36
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