If A, B are two `n xx n` non-singular matrices, then (1) AB is non-singular (2) AB is singular (3) `(AB)^(-1)=A^(-1) B^(-1)` (4) `(AB)^(-1)` does not exist
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Since A, B are two n×n non-singular matrices, so ` (AB)^(−1)=A^(−1)B^(−1)`.
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