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If A and B are square matrices of order 3 then (A) `AB=0rarr|A|=0 or |B|=0` (B) `AB=0rarr|A|=0 and |B|=0` (C) `Adj(AB)=Adj A Adj B` (D) `(A+B)^-1=A^-1+B^-1`

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