Show that if A has n linearly independent eigenvectors, then so does A¹.
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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Transcribed Image Text:Show that if A has n linearly independent eigenvectors, then so does A¹.
If A has n linearly independent eigenvectors, complete the statements below based on the Diagonalization Theorem.
A can be factored as
The
of matrix P are n linearly independent
D is a diagonal matrix whose diagonal entries are
What form is required to show that A also has n linearly independent eigenvectors?
AT can be written in
Use the factored form of A to write A in terms of PT, DT, and (P¹).
Note that P and P
G
OA. P
1
are invertible matrices. What is (P¹) equal to?
B. p-1
OC. (PT)¹
) D. p-T
Remember that D is a diagonal matrix. Simplify DT.
Use a matrix Q to factor A¹ in the form identified above that shows that it has n linearly independent eigenvectors. How is Q related to P
in the factored form of A found previously?
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