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What other angle has the exact same cosine value of 120 degrees (between 0 and 360 degrees)

This is a unit circle problem fam...

Guest Mar 26, 2016

edited by Guest Mar 26, 2016

SpawnofAngel · Answer 1 · 2016-03-26T11:57:32

Forgive me. Im a bit rusty

So isnt cos(120) = to, like, 2pi/3 ?

Cause pi/3 is 60 degrees

So two of them is 120?

And due to it being cos, it will be positive in the 1st and second quadrants no matter what.

So.... 2pi/3, final answer

Guest · Answer 2 · 2016-03-26T03:28:10

While 120 degrees IS equal to 2/3 pi, that isn't what the question asked.

The answer is 240 degrees. Cos 120=Cos240=-0.5