Consider the matrix A - 24 -8 15 (a) Calculate the det(A − xI), where x is a variable. We call the result the characteristic polynomial of A. (b) Give the two zeros 1 and 22 of this polynomial. λ1 and 22 are called the eigenvalues of the matrix A. that Avi hivi. -13 (c) For each eigenvalue λ1, find an eigenvector vi = = (d) Construct the matrix D = (2.1 0 are eigenvectors v1 and v2. Calculate ODO 0 22 xi (*) + (8) Su # yi and the matrix Q whose columns what do you notice?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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Consider the matrix A
=
- 13
24
8 15
(a) Calculate the det(A - xI), where x is a variable. We call the result the
characteristic
polynomial of A.
(b) Give the two zeros 1 and 2 of this polynomial. λ1 and 22 are called
the eigenvalues of the matrix A.
(c) For each eigenvalue 21, find an eigenvector vi = ( ) + (8)
xi
#
such
7
that Avi = hivi.
(d) Construct the matrix D =
(2).
are eigenvectors v1 and v2. Calculate QDQ
λ1
0 22
0
and the matrix Q whose columns
-1
; what do you notice?
Transcribed Image Text:Consider the matrix A = - 13 24 8 15 (a) Calculate the det(A - xI), where x is a variable. We call the result the characteristic polynomial of A. (b) Give the two zeros 1 and 2 of this polynomial. λ1 and 22 are called the eigenvalues of the matrix A. (c) For each eigenvalue 21, find an eigenvector vi = ( ) + (8) xi # such 7 that Avi = hivi. (d) Construct the matrix D = (2). are eigenvectors v1 and v2. Calculate QDQ λ1 0 22 0 and the matrix Q whose columns -1 ; what do you notice?
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