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

(i) Reduce the system to echelon form C|d

(ii) For k = -12, what are the ranks of C and C|d? Find the solution in vector form if the system is consistent.

(iii) Repeat part (b) above for k = −18

2. Relevant equations

Gaussian elimination I used here:

http://mathworld.wolfram.com/GaussianElimination.html

3. The attempt at a solution

I've attempted reducing the matrix but have run into this problem where I have two zeroes leading in the last three rows. I don't know what I am doing wrong, so any help would be greatly appreciated.

I can't continue with either parts b or c without solving part a, and I'm not too sure about those parts either.

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

Dismiss Notice

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: Reducing a matrix to echelon form

Have something to add?

Draft saved
Draft deleted

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