Linear Algebra and Its Applications (5th Edition)

Published by Pearson
ISBN 10: 032198238X
ISBN 13: 978-0-32198-238-4

Chapter 2 - Matrix Algebra - 2.9 Exercises - Page 161: 26

Answer

See solution

Work Step by Step

The rank is the number of linearly independent columns in matrix A. If the rank is 4, because all other columns are linearly dependent, the 4 linearly independent columns must be pivot columns and form the basis of the column space.
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