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[" 128.If "A=[[cos theta,sin theta],[sin...

[" 128.If "A=[[cos theta,sin theta],[sin theta,-cos theta]],B=[[1,0],[-1,1]],C=ABA^(T)," ther "],[A^(T)C^(n)A(n in I)" equal to "," (B) "[[1,-n],[0,1]]],[[" (A) "[[-n,1],[1,0]]," (D) "[[1,0],[-n,1]]]]

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