If tan (α + β) = 2 and tan (α - β) = 1, then tan (2α) is equal to – McqOptions

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1.	If tan (α + β) = 2 and tan (α - β) = 1, then tan (2α) is equal to
A.	-3
B.	-2
C.	\(- \frac{1}{3}\)
D.	1
Answer» B. -2

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