Q. 3cosA किसके बराबर है?

(A) 4cos^3A + cos3A
(B) 4cos^3A - cos3A
(C) 3cos^3A - cos3A
(D) 3cos^3A + cos3A

✅ Correct Answer: (B) 4cos^3A - cos3A

Published by Chandan Das ⭐ 6.78K Points at 07-Sep-2021 02:48 pm in Math

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