SOLUTION: Give an example of a real number t for which cos t is positive and sin t is negative.

SOLUTION: Give an example of a real number t for which cos t is positive and sin t is negative.

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Question 1028835: Give an example of a real number t for which cos t is positive and sin t is negative.
Answer by fractalier(6550) (Show Source): You can put this solution on YOUR website!
Cos is positive and sin is negative only in QIV, that is, where angles are between 270 and 360 degrees...or between 3(pi)/2 and 2(pi) radians.
So 315 degrees or 7(pi)/4 radians works.
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