Introduction to mathematical programming
Introduction to mathematical programming
4th Edition
ISBN: 9780534359645
Author: Jeffrey B. Goldberg
Publisher: Cengage Learning
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Chapter 2.5, Problem 11P

Explanation of Solution

Properties possessed by the columns of an orthogonal matrix:

A square matrix is orthogonal if AAT=I.

Now if, AAT=I.

Then, AT is also the inverse of matrix  A

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