Let A = 9 -6 0 9 -6 0 4 5 3 eigenspace. (a) Compute the characteristic polynomial pë(λ). (b) Use your answer from part (a) to find all the eigenvalues of A. (c) For each eigenvalue from part (b), find a basis of the corresponding eigenspace. (d) Use your answer from part (c) to determine whether A is diagonalizable. If so, produce an invertible matrix P and a diagonal matrix D such that A = PDP ¹. If not, explain why not in a complete sentence.

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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9
2. Let A = 9
60
-6 0
4 5 3
(a) Compute the characteristic polynomial PA(A).
(b) Use your answer from part (a) to find all the cigenvalues of A.
eigenspace.
(c) For each eigenvalue from part (b), find a basis of the corresponding eigenspace.
(d) Use your answer from part (c) to determine whether A is diagonalizable. If so, produce
an invertible matrix P and a diagonal matrix D such that A = PDP ¹. If not, explain
why not in a complete sentence.
T
Transcribed Image Text:9 2. Let A = 9 60 -6 0 4 5 3 (a) Compute the characteristic polynomial PA(A). (b) Use your answer from part (a) to find all the cigenvalues of A. eigenspace. (c) For each eigenvalue from part (b), find a basis of the corresponding eigenspace. (d) Use your answer from part (c) to determine whether A is diagonalizable. If so, produce an invertible matrix P and a diagonal matrix D such that A = PDP ¹. If not, explain why not in a complete sentence. T
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