4.2 Suppose that A and B are 3 x 3 matrices so that: E (A) is the xy-plane, and Eo(A) is the z-axis. E-1(B) is the xy-plane, and E2(B) is the z-axis. Note that En (C) is the eigenspace of matrix C for eigenvalue A. It is equal to {x | Cx = Ax). Show that AB = BA. Hint: what sets of basic eigenvectors do the matrices have?
4.2 Suppose that A and B are 3 x 3 matrices so that: E (A) is the xy-plane, and Eo(A) is the z-axis. E-1(B) is the xy-plane, and E2(B) is the z-axis. Note that En (C) is the eigenspace of matrix C for eigenvalue A. It is equal to {x | Cx = Ax). Show that AB = BA. Hint: what sets of basic eigenvectors do the matrices have?
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter4: Eigenvalues And Eigenvectors
Section4.6: Applications And The Perron-frobenius Theorem
Problem 16EQ
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