(a) If I is the 4 4 matrix with every entry 1, show that I -...

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(a) If I is the 4 × 4 matrix with every entry 1, show that I - 1/2 J is self-inverse and symmetric.
(b) If X is n × m and satisfies XTX = lm, show that Im,-2XXT is self-inverse and symmetric.

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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 06:27 AM

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(a) If I is the 4 4 matrix with every entry 1, show that I -...

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b Write U In 2XXT Then U is symmetric b...View the full answer

Linear Algebra With Applications

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