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

Prove the thread title.

2. Relevant equations

Without using anything about rank, nullity, etc., --- just row reduction

3. The attempt at a solution

Can't figure this out. It's actually a friend one of my buddies is doing for his class. PLEASE ANSWER IN LESS THAN 2 HOURS! IT'S URGENT!

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# Homework Help: An n x n matrix with two identical rows has infinitely many solutions

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