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Find all the angles

0 votes

Find all the angles exactly between 0 degrees and 360 degrees for which tan theta = -1

trigonometric-equation
exact-value

asked Dec 26, 2017 in TRIGONOMETRY by anonymous

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1 Answer

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tan θ = - 1

From the trigonometry

tan 45 = 1

And tangent of a angle is negative in 1st and 4th quadrants

Hence,

tan θ = - 1 when θ = 135 degrees and 315 degrees

answered Dec 26, 2017 by homeworkhelp Mentor

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