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

find rk(A) for the following matrix

[3 -6]

[5 -10]

[-2 4]

2. Relevant equations

3. The attempt at a solution

How am I supposed to find the answer when I don't know what r is? I thought r had to be a number or a scalar and you multiply the whole matrix by it.

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# Homework Help: Linear Algebra - find rk(A)

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