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

Give all the possible 2x2 row echelon reduced matrices.

2. The attempt at a solutionI thought about the matrices (0 0, 0 0), (1 0, 0 0), (0 1, 0 0), (0 0, 1 0), (1 0, 0 1), (0 1, 0 0), (0 0, 0 1). Where the "," inside the parenthesis means a change of row.

So in total I have found 7 matrices... is this right?

Hmm isn't there an infinity of them? Like for example (1 0, a, b) where a is different from 1.

As you see I'm confused.

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Give all the 2x2 row echelon reduced matrices

**Physics Forums | Science Articles, Homework Help, Discussion**