Linear Algebra and Its Applications (5th Edition)

Published by Pearson
ISBN 10: 032198238X
ISBN 13: 978-0-32198-238-4

Chapter 1 - Linear Equations in Linear Algebra - 1.2 Exercises - Page 23: 30

Answer

$$ \begin{bmatrix} 1 & 1 & 1 & 1 \\ 1 & 1 & 1 & 2 \\ \end{bmatrix} $$

Work Step by Step

The above system is undetermined because it has fewer equations (2) than unknowns (3). It is inconsistent because row reduction yields a row with coefficients of $0$ somehow adding up to $1$, which is impossible.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.