Mathematics, 13.04.2021 23:30 kendall984

It is known that sin u = 7/25 in Q2.
Find cos (2u). Type your answer as an exact fraction.

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It is known that sin u = 7/25 in Q2.
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It is known that sin u = 7/25 in Q2. Find cos (2u). Type your answer as an exact fraction.

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Another question on Mathematics

It is known that sin u = 7/25 in Q2.
Find cos (2u). Type your answer as an exact fraction.