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[" If "A=[[cos x,-sin x],[sin x,cos x]]"...

[" If "A=[[cos x,-sin x],[sin x,cos x]]" ,then find the values of "x" such that "A^(T)+A=I_(2)" ,"],[A=[[" [OR "],1]]" and "B=(1)/(-)[[0,1]]" then find "(AB)^(-1)]

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