If θ lies in the first quadrant and cos2θ – sin2θ = 1/2 then the – McqOptions

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1.	If θ lies in the first quadrant and cos2θ – sin2θ = 1/2 then the value of tan22θ + sin23θ is:
A.	7/2
B.	3
C.	4/3
D.	4
Answer» E.

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