College Algebra 7th Edition

Published by Brooks Cole
ISBN 10: 1305115546
ISBN 13: 978-1-30511-554-5

Chapter 6, Matrices and Determinants - Chapter 6 Review - Exercises - Page 540: 46

Answer

In the multiplications it can be seen that the results of each one is an identity matrix, therefore it can be verified that matrix A is the inverse of matrix B and vice versa.

Work Step by Step

We have to perform the AB and BA multiplications, which is shown in the image below:
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