Linear Algebra and Its Applications (5th Edition)

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

Chapter 1 - Linear Equations in Linear Algebra - 1.2 Exercises: 15

Answer

a) The system is consistent, and there is exactly one solution. b) The system is inconsistent, so there are no solutions.

Work Step by Step

a) We can see the rightmost column is not a pivot column, and there are no free variables. b) The last column on the right is a pivot column, so the system is inconsistent, and, therefore, has no solutions.
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