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[" If "[[1,-tan theta],[tan theta,1]][[1...

[" If "[[1,-tan theta],[tan theta,1]][[1,tan theta],[-tan theta,1]]=[[a,-b],[-b,a]]],[[" (A) "a=1,b=-1," (B) "a=sec^(2)theta,b=0," (C) "a=0,b=sin^(2)theta," (D) "a=sin2 theta,b=cos2 theta]]

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