what is tan(120°) ?

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what is tan(120°) ?

Guest Jan 21, 2015

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This is a 60 degree reference angle in the 2nd quadrant......so.....what''s the tangent of 60 degrees ???.....(√3)......

But, remember, the tangent is negative in the second quadrant, so we have .. (-√3 )

CPhill Jan 21, 2015

CPhill · Answer 1 · 2015-01-21T12:50:46

This is a 60 degree reference angle in the 2nd quadrant......so.....what''s the tangent of 60 degrees ???.....(√3)......

But, remember, the tangent is negative in the second quadrant, so we have .. (-√3 )