(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

I have a trouble in this proof;

Let A be an m[tex]\times[/tex]n matrix and B n[tex]\times[/tex]m matrix. If m[tex]\neq[/tex]n show that at least one of the matrices AB and BA is singular.

2. Relevant equations

If it is singular not invertible and det=0 but how can I apply this question?

3. The attempt at a solution

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# Homework Help: Singular Matrix AB and/or BA

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