Suppose a 3x3 matrix A admits a factorization as A=PDP-1 where P is some invertible matrix and D is the diagonal matrix shown to the right. Show that this factorization is useful when computing high powers of A. Find fairly simple formulas for A², A³, and AK (k a positive integer), using P and the entries in D.
Suppose a 3x3 matrix A admits a factorization as A=PDP-1 where P is some invertible matrix and D is the diagonal matrix shown to the right. Show that this factorization is useful when computing high powers of A. Find fairly simple formulas for A², A³, and AK (k a positive integer), using P and the entries in D.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Transcribed Image Text:Suppose a 3x3 matrix A admits a factorization as A = PDP-1 where
P is some invertible matrix and D is the diagonal matrix shown to the
right. Show that this factorization is useful when computing high
powers of A. Find fairly simple formulas for A², A³, and AK (k a
positive integer), using P and the entries in D.
A²=0
A³ =
D=
20 0
0
- 15
1
0 0
0
1
8
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