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Trig

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Are 120 and -240 coterminal?

  • Trig -

    Coterminal A = A + k*360

    To find a positive coterminal angle
    A = -240
    Coterminal A = -240 + 360
    Coterminal A = 120

    To find a negative coterminal angle
    A = -240
    Coterminal A = -240 - 360
    Coterminal A = -600

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