Elementary Linear Algebra 7th Edition

Published by Cengage Learning
ISBN 10: 1-13311-087-8
ISBN 13: 978-1-13311-087-3

Chapter 3 - Determinants - 3.2 Determinants and Elementary Operations - 3.2 Exercises - Page 118: 6

Answer

Interchange the first and third rows.

Work Step by Step

$$ \left|\begin{array}{rrr}{1} & {3} & {4} \\ {-2} & {2} & {0} \\ {1} & {6} & {2}\end{array}\right|=-\left|\begin{array}{rrr}{1} & {6} & {2} \\ {-2} & {2} & {0} \\ {1} & {3} & {4}\end{array}\right|. $$ Interchange the first and third rows.
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