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3sin.square titta - sin tita = 1/4

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  1. 3 sin^2 T - sin T = 1/4 ????
    let z = sin T

    3 z - z = 1/4

    z - z/3 = 1/12

    z - z/3 + 1/36 = 3 /36 + 1/36 = 4/36 = 1/9

    (z-1/6)^2 = 1/9

    z = 1/6 +/- 1/3

    z = 1/2 or z = -1/6

    if sin T = 1/2
    T = 30 degrees or pi/6
    if sin T = -1/6
    T = -9.6 degrees

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