Let A be an m x n matrix such that the matrix A T A is invertible.
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Let A be an m x n matrix such that the matrix ATA is invertible. Let x̂1 and x̂2 be the least squares solutions of equations Ax = b1 and Ax = b2 respectively. Show that c1x̂1 + c2x̂2 is the least-squares solution of Ax = c1b1 + c2b2 for any choice of scalars c1 and c2.
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Related Book For
Linear Algebra And Its Applications
ISBN: 9781292351216
6th Global Edition
Authors: David Lay, Steven Lay, Judi McDonald
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