For an invertible matrix A, prove that A and A- have the same eigenvectors. How are the eigenvalues of A related to the eigenvalues of A? Letting x be an eigenvector of A gives Ax = Ax for a corresponding eigenvalue 2. Using matrix operations and the preperties of inverse matrices gives which of the following? Ax = Ax Ax = x Ax = ix AXA-1 = 2xA-1 = 2A-1x xI = JA-1x A/(Ax) = A/(Ax) Ax/A = Ax/A Ax = ix OA/A)x = (A/A)x Ix = (A/A)x O(A/A)x = ixA-1 Ix = 2xA-1 A-Ax = A-12x Ix = A-1x x = 1A-1x x = JA-x x= xA-1 A-x = 1x A-x = 1x A-x = 1x A-x = 1x This shows that-Select-- vis an eigenvector of A with eigenvalue -Select--v Select Need Help? 1/x 1/A Submit Answer
For an invertible matrix A, prove that A and A- have the same eigenvectors. How are the eigenvalues of A related to the eigenvalues of A? Letting x be an eigenvector of A gives Ax = Ax for a corresponding eigenvalue 2. Using matrix operations and the preperties of inverse matrices gives which of the following? Ax = Ax Ax = x Ax = ix AXA-1 = 2xA-1 = 2A-1x xI = JA-1x A/(Ax) = A/(Ax) Ax/A = Ax/A Ax = ix OA/A)x = (A/A)x Ix = (A/A)x O(A/A)x = ixA-1 Ix = 2xA-1 A-Ax = A-12x Ix = A-1x x = 1A-1x x = JA-x x= xA-1 A-x = 1x A-x = 1x A-x = 1x A-x = 1x This shows that-Select-- vis an eigenvector of A with eigenvalue -Select--v Select Need Help? 1/x 1/A Submit Answer
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter4: Eigenvalues And Eigenvectors
Section4.3: Eigenvalues And Eigenvectors Of N X N Matrices
Problem 41EQ
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