# Trigonometry

Find all solutions of the equation in the interval(0-360) Tan(0-30degrees)= -5

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asked by Wayne
1. tan(θ-30) = -5
tan 78.7 = 5

since tanθ is negative in QII and QIV,

θ-30 = (180-78.7) or (360-78.7)
so, now you can figure θ

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posted by Steve

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