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Formula if cos2A in terms of multiple angle ​

Formula if cos2A in terms of multiple angle ​
asked 152k views
3 votes
Formula if cos2A in terms of multiple angle ​

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User Pent Ploompuu
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8.6k points

1 Answer

4 votes

Answer:

1/sec is rhe answer of 2 cos A

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User Unwichtich
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