Answer
2
Work Step by Step
From the rank theorem, Rank A = n - dim Nul A=5-3=2
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 2 - Matrix Algebra - 2.9 Exercises - Page 161: 20
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