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Let \(A\) and \(B\) be square matrices of order \(n\) satisfying \(AB=O\) where \(O\) is \(n \times n\) zero matrix. Then |
\(A=O\) or \(B=O\) \(A=0\) or \(B=0\) \(A\) and \(B\) both may be non zero None of the above |
\(A\) and \(B\) both may be non zero |
