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Mathematics, 03.01.2021 01:00 arielove62

If t =  \frac{\pi}{2}
then cos2t

A. -1
B. 0
C. 1
D. 0.5
E. -0.5

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Answers: 3

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You know the right answer?
If
then cos2t

A. -1
B. 0
C. 1
D. 0.5
E. -0.5...
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