What is sin 3x + cos 3x + 4 sin3 x - 3 sin x + 3 cos x - 4 cos3 x equa – McqOptions

MCQOPTIONS

1.	What is sin 3x + cos 3x + 4 sin3 x - 3 sin x + 3 cos x - 4 cos3 x equal to?
A.	0
B.	1
C.	2 sin 2x
D.	4 cos 4x
Answer» B. 1

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