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Need solution to cosAcos2Acos4A in terms of cos3A? Is it (1/4)cos3A

Need solution to cosAcos2Acos4A in terms of cos3A? Is it (1/4)cos3A

Grade:12th pass

1 Answers

Gautam Kumar
11 Points
6 years ago
No sin8A/8sinA using formula of continuous product of cosine .this is the the answer of cosAcos(60-A)cos60+A)

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