(i) Show that A is diagonalizable. Find a basis of R³ consisting of eigenvectors of A. Write down an invertible matrix P and a diagonal matrix D such that D = P-¹AP.

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter7: Eigenvalues And Eigenvectors
Section7.1: Eigenvalues And Eigenvectors
Problem 77E
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4. Let
3
2
5
--G9 -(7)
A = -1 0 -1
B = 3 0 1
6 6 7
-3 2 1
(i) Show that A is diagonalizable. Find a basis of R³ consisting of eigenvectors of A. Write
down an invertible matrix P and a diagonal matrix D such that D = P-¹AP.
(ii) Find the eigenvalues and bases of the eigenspaces of B, and show that B is not diagonalizable.
Transcribed Image Text:4. Let 3 2 5 --G9 -(7) A = -1 0 -1 B = 3 0 1 6 6 7 -3 2 1 (i) Show that A is diagonalizable. Find a basis of R³ consisting of eigenvectors of A. Write down an invertible matrix P and a diagonal matrix D such that D = P-¹AP. (ii) Find the eigenvalues and bases of the eigenspaces of B, and show that B is not diagonalizable.
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