Let A be a skew-symmetric matrix; that is, AT = -A. Assume that A is an n

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Let A be a skew-symmetric matrix; that is, AT = -A. Assume that A is an n × n matrix.
Show that P = (I - A)(I + A)-1 is orthogonal.

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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 06:47 AM

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Let A be a skew-symmetric matrix; that is, AT = -A. Assume that A is an n

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Observe first that I A and I A commute whence I A ...View the full answer

Linear Algebra With Applications

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