Statement 1: A=[4 0 4 2 2 2 1 2 1]B^(-1)...

Statement 1: `A=[4 0 4 2 2 2 1 2 1]B^(-1)=[1 3 3 1 4 3 1 3 4]` . Then `(A B)^(-1)` does not exist. Statement 2: Since `|A|=0,(A B)^(-1)=B^(-1)A^(-1)` is meaning-less.

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