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If θ lies in the first quadrant and cos^...

If θ lies in the first quadrant and `cos^(2) θ – sin^(2) θ = 1/2`, then the value of `tan^(2)2θ + sin^(2)3θ` is: यदि θ प्रथम चतुथथांश में है और `cos^(2) θ – sin^(2) θ = 1/2`, तो `tan^(2)2θ + sin^(2)3θ` का मान है:

A

`4/3`

B

4

C

3

D

`7/2`

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