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 539: 26

Answer

The operation is not defined.

Work Step by Step

We know that matrix $5B$ will have the same dimensions as $B$ and $-2C$ will have the same dimensions as $C$. But addition of matrices is only defined when the matrices have the same dimensions. Here, $B$ and $C$ have different dimensions, so the operation is not defined.
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