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

Prove the formula.

2. Relevant equations

Matrix multiplication:

[tex](\text{AB})_{i \,j}=\sum _{k=1}^n a_{i \,k}b_{k \,j}[/tex]

3. The attempt at a solution

I do not know how to "prove" the formula for arbitrary values of [itex]k[/itex] and [itex]n[/itex].

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# Homework Help: Matrix multiplication

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