• 2 Sin x = -√3
    Sin x = -½√3
    Sin x = 240°

    1) x = 240° + k.360°
    ...x = {240}
    2) x = (180-240)° + k.360°
    ....x = {300°}
    dengan k = 0,1,2,3, ...
    Maka, Hp = {240°, 300°}

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