The value of 2 sin^2 theta + k cos^2 2 t...

The value of `2 sin^2 theta + k cos^2 2 theta =1 ` , then k is equal to :

A

`cos theta + cos alpha`

B

independent of `theta`

C

independent of `alpha`

D

None of these

Verified by Experts

The correct Answer is:

B

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