College Algebra (6th Edition)

Published by Pearson
ISBN 10: 0-32178-228-3
ISBN 13: 978-0-32178-228-1

Chapter 6 - Matrices and Determinants - Exercise Set 6.3 - Page 625: 42

Answer

$B-A$ is not defined. ($B$ and $A$ have different orders)

Work Step by Step

$B$ is a 2$\times$2 matrix. $A$ is a 3$\times$2 matrix. The sum/difference is defined only for matrices with the same order. $B-A$ is not defined. ($B$ and $A$ have different orders)
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