If [(1,-tan theta),(tan theta,1)][(1,tan...

If `[(1,-tan theta),(tan theta,1)][(1,tan theta),(-tan theta,1)]^(-1)=[(a,-b),(b,a)],` then a) a = cos 2 θ , b = sin 2 θ b) a = 1 , b = 1 a = c) sin 2 θ , b = cos 2 θ d) a = sec 2 θ , b = tan 2 θ

A

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

B

`a=1, b=1`

C

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

D

`a=sec 2 theta, b=tan 2 theta `

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The correct Answer is:

a

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