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|{:(sin^(2)theta,cos^(2)theta),(-cos^(2)...

`|{:(sin^(2)theta,cos^(2)theta),(-cos^(2)theta,sin^(2)theta):}|=`

A

`cos2theta`

B

`(1)/(2)(1+cos^(2)2theta)`

C

`(1)/(2)(1sin^(2)2theta)`

D

`(1)/(2)sin^(2)2theta`

Text Solution

Verified by Experts

The correct Answer is:
B
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