If cos α - cos β = 2 (sin β - sin α), then the value of sin 3α + – McqOptions

MCQOPTIONS

1.	If cos α - cos β = 2 (sin β - sin α), then the value of sin 3α + sin 3β is equal to
A.	0
B.	sin 6α
C.	2⋅sin 3α
D.	None of the above
Answer» D. None of the above

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