Introduction to mathematical programming
Introduction to mathematical programming
4th Edition
ISBN: 9780534359645
Author: Jeffrey B. Goldberg
Publisher: Cengage Learning
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Chapter 2.3, Problem 9P

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Having unique solution:

Suppose there are m equations and n unknowns, where m<n.

If the system Ax=b has a unique solution, then it should be consistent. It implies that the following situation doesn’t exist:

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