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" 26) If "I=[[1,-tan theta],[tan theta,1...

" 26) If "I=[[1,-tan theta],[tan theta,1]][[1,tan theta],[-tan theta,1]]^(-1)=[[a,-b],[b,a]]" then "

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[[1, -tan thetatan theta, 1]] [[1, tan theta-tan theta, 1]] ^ (- 1) = [[a, -bb, a]]

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([1, -tan thetatan theta, 1]) ([1, tan theta-tan theta, 1]) (- 1) = [[a, -bb, a]]

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