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Find all the angles

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Find all the angles exactly between 0 degrees and 360 degrees for which tan theta = -1
asked Dec 26, 2017 in TRIGONOMETRY by anonymous

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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