Matematika

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cot(3000°)=............. ???

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  • Bab Trigonometri
    Matematika SMA Kelas X

    cot (3.000°)
    = cot (16 x 180° + 120°)
    = cot 120°
    = cot (180 - 120)°
    = - cot 60°
    = - 1/3 √3

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