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If ((1,-tan theta ),(tan theta,1))((1,ta...

If `((1,-tan theta ),(tan theta,1))((1,tan theta ),(-tan theta ,1))^(-1) = ((a,-b),(b,a))` then :

A

`a=1=b`

B

`a=cos 2 theta, b=sin 2 theta`

C

`a=sin 2 theta, b=cos 2 theta`

D

`a cos theta, b sin theta`

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The correct Answer is:
B
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