SOLUTION: cosine theta= - (radical 2 divided by 2) what is theta?

Question 334343: cosine theta= - (radical 2 divided by 2) what is theta?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!

Take a look at the unit circle:

In the unit circle, the

-coordinate represents the value of cosine.

Since you didn't specify an interval for

where

John

My calculator said it, I believe it, that settles it

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