Need solution to cosAcos2Acos4A in terms of cos3A? Is it (1/4)cos3A
Arsha , 8 Years ago
Grade 12th pass
Trigonometry> Need solution to cosAcos2Acos4A in terms ...
1 AnswersGautam Kumar
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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