The value of (1-2 sin^2 theta cos^2 the...

The value of `(1-2 sin^2 theta cos^2 theta )/(sin^4 theta +cos^4 theta )-1` is:
`(1-2 sin^2 theta cos^2 theta )/(sin^4 theta +cos^4 theta )-1` का मान है :

A

0

B

`-1`

C

1

D

`-2sin^2""thetacos^2""theta`

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The correct Answer is:

A

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