If ((1,-tantheta),(tantheta,1))((1,tanth...

If `((1,-tantheta),(tantheta,1))((1,tantheta),(-tantheta,1))=[(a,-b),(b,a)]` then

A

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

B

`a = 1 , b = sin 2 theta`

C

`a = b = 1`

D

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

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The correct Answer is:

D

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