b) 3 -2 Given matrix A = -2 6 2. Suppose the eigenvalues of A and the bases for the 4 2 corresponding eigenspaces are as follows A₁ = -2, Ex=-2 2-{(3)}) and 2 i. Explain why A is orthogonally diagonalizable. ii. Give the relation between Ex=-2 and Ex-7. Hence, find an orthogonal matrix Q that diagonalizes matrix A and the corresponding diagonal matrix D such that D = Q-¹AQ. iii. Hence, calculate A². ---(Q)-()} 2 and X₂ = 7, Ex=7
b) 3 -2 Given matrix A = -2 6 2. Suppose the eigenvalues of A and the bases for the 4 2 corresponding eigenspaces are as follows A₁ = -2, Ex=-2 2-{(3)}) and 2 i. Explain why A is orthogonally diagonalizable. ii. Give the relation between Ex=-2 and Ex-7. Hence, find an orthogonal matrix Q that diagonalizes matrix A and the corresponding diagonal matrix D such that D = Q-¹AQ. iii. Hence, calculate A². ---(Q)-()} 2 and X₂ = 7, Ex=7
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.1: Inner Product Spaces
Problem 10AEXP
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