Answer
$k$
Work Step by Step
By Theorem 2, this determinant is equal to the product of the entries along the main diagonal: $k\cdot1\cdot1=k$.
Linear Algebra and Its Applications (5th Edition)
by Lay, David C.; Lay, Steven R.; McDonald, Judi J.
Published by
Pearson
ISBN 10:
032198238X
ISBN 13:
978-0-32198-238-4
Chapter 3 - Determinants - 3.1 Exercises - Page 170: 28
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