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 6.5 - Page 654: 73

Answer

See below.

Work Step by Step

By definition, since the "parity" of the interchanged columns are different, the value of the determinant gets multiplied by $-1$.
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