Can we say that a zero matrix is invertible?

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Explanation for correct answer:
Invertible Matrix:
Any square matrix $A$ of order n × n is called invertible matrix if there exists another $n \times n$ square matrix $B$
such that, $A B = B A = I$ ,
where $I$ is an identity matrix of order $n \times n$ .
Thus, a zero matrix cannot be an invertible matrix.

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