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Let f(x)=[(cosx,-sinx,0),(sinx,cosx,0),(...

Let` f(x)=[(cosx,-sinx,0),(sinx,cosx,0),(0,0,1)], then` (A) `(f(x))^2=-I` (B) `f(x+y)=f(x),f(y)` (C) `f(x)^-1=f(-x)` (D) `f(x)^-1=f(x)`

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