2 - 2 - 4 Prove that the matrix A =-1 3 4 is an idempotent matrix. 1 - 2 - 3

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter3: Matrices
Section: Chapter Questions
Problem 8RQ
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2
- 2
-4
Prove that the matrix A = -1 3
4 is an idempotent matrix.
-2 -3
1
Transcribed Image Text:2 - 2 -4 Prove that the matrix A = -1 3 4 is an idempotent matrix. -2 -3 1
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