Consider the matrix A = 5 1 0 5 1 0 l-1 1 6 a) Diagonalize the matrix in the form A = SAS-¹, with S a matrix containing the (normalized) eigenvectors and A a diagonal matrix containing the eigenvalues. b) Is the matrix S an orthogonal matrix ? Why / why not? c) Using the eigenvalue decomposition computed in a), determine (including a short explanation!) a. the rank of the matrix A. b. the determinant of the matrix A. C. the null space of the matrix A.
Consider the matrix A = 5 1 0 5 1 0 l-1 1 6 a) Diagonalize the matrix in the form A = SAS-¹, with S a matrix containing the (normalized) eigenvectors and A a diagonal matrix containing the eigenvalues. b) Is the matrix S an orthogonal matrix ? Why / why not? c) Using the eigenvalue decomposition computed in a), determine (including a short explanation!) a. the rank of the matrix A. b. the determinant of the matrix A. C. the null space of the matrix A.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Question

Transcribed Image Text:Consider the matrix
1
1
−1 1 6
5
A = 5
a) Diagonalize the matrix in the form A = SAS-¹, with S a matrix containing the (normalized)
eigenvectors and A a diagonal matrix containing the eigenvalues.
a.
b)
Is the matrix S an orthogonal matrix? Why / why not?
c)
Using the eigenvalue decomposition computed in a), determine (including a short explanation!)
the rank of the matrix A.
b. the determinant of the matrix A.
C. the null space of the matrix A.
d) Determine if the matrix (A+A) is positive definite, negative definite or indefinite,
Hint: this can be determined without computing the eigenvalue decomposition.
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