Answer
5
Work Step by Step
The largest possible rank of A is the number of pivot columns, which cannot exceed 5 for both the 7 by 5 matrix and the 5 by 7 matrix.
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 4 - Vector Spaces - 4.6 Exercises - Page 239: 13
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