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trig

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Find all angles in degrees that satisfy the equation. Round approximate answers to the nearest tenth of a degree.

tan α = -1.85

  • trig - ,

    arctan(1.85) = 61.6°

    tan(x) < 0 in QII, QIV, so
    x = (180-61.6) = 118.4°
    x = (360-61.6) = 298.4°

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