Suppose the matrices P and Q have the same rows as I but in any order. They are "permutation matrices". Show that P - Q is singular by solving (P - Q) x = 0.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter3: Matrices
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Suppose the matrices P and Q have the same rows as I but in any order. They are "permutation matrices". Show that P - Q is singular by solving (P - Q) x = 0.

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