Think of Rn as consisting of rows. If A is m n and AAT is invertible,

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Think of Rn as consisting of rows.
If A is m × n and AAT is invertible, show that E - AT(AAT)-1 A is a projection matrix.

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Linear Algebra With Applications

ISBN: 9780070985100

7th Edition

Authors: W. Keith Nicholson

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Question Posted: Jun 21, 2016 06:46 AM

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Think of Rn as consisting of rows. If A is m n and AAT is invertible,

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Linear Algebra With Applications

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