3. A subspace U C Rº and x E R® are given by 3 1 -3 -1 -3 4 -3 2 U = 1 1 and x = 2 -1 2 2 1 7 2 [1/2 1 1/4 3/2] (a) Find the orthogonal projection of x onto U, TU (x). Please verify TU(x) lies in the same subspace as U. (b) What is your projection matrix?
3. A subspace U C Rº and x E R® are given by 3 1 -3 -1 -3 4 -3 2 U = 1 1 and x = 2 -1 2 2 1 7 2 [1/2 1 1/4 3/2] (a) Find the orthogonal projection of x onto U, TU (x). Please verify TU(x) lies in the same subspace as U. (b) What is your projection matrix?
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter7: Distance And Approximation
Section7.3: Least Squares Approximation
Problem 43EQ
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