Question icon
Grade 12th passTrigonometry

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

Profile image of Arsha
8 Years agoGrade 12th pass
Answers icon

1 Answer

Profile image of Gautam Kumar
8 Years ago
No sin8A/8sinA using formula of continuous product of cosine .this is the the answer of cosAcos(60-A)cos60+A)