hii guys ....☺☺☺
(Cos 3 A = 4 Cos ^3 A - 3 Cos A )
prove the formula ....
......Thanks......✌✌✌
Answers
Answered by
4
hope this helps . ....
Attachments:
Similar questions
Hindi,
8 months ago
Political Science,
8 months ago
Math,
8 months ago
Social Sciences,
1 year ago
Math,
1 year ago