Q: If cos3A = X, then value of X? – McqOptions

MCQOPTIONS

1.	Q: If cos3A = X, then value of X?
A.	4cos3A + 3cosA
B.	3cosA – 4cos3A
C.	cosA + 4cos3A
D.	4cos3A – 3cosA
Answer» E.

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