If in a triangle ∠B = 90° and ∠A = 30°, then 2sin2A – cos2A � – McqOptions

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1.	If in a triangle ∠B = 90° and ∠A = 30°, then 2sin2A – cos2A – tan2A = ?
A.	1/6
B.	-1/2
C.	1
D.	-1/3
Answer» C. 1

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