If sec (θ – α), sec θ and sec (θ + α) are in AP, where cos α � – McqOptions

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1.	If sec (θ – α), sec θ and sec (θ + α) are in AP, where cos α ≠ 1, then what is the value of sin2 θ + cos α?
A.	0
B.	1
C.	-1
D.	1/2
Answer» B. 1

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