Introduction to mathematical programming
Introduction to mathematical programming
4th Edition
ISBN: 9780534359645
Author: Jeffrey B. Goldberg
Publisher: Cengage Learning
Expert Solution & Answer
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Chapter 2.6, Problem 3P

Explanation of Solution

Proof:

Consider a 3×3 upper triangular matrix given below:

A=[a11    a12    a130       a22   a230       0      a33]

The third-row cofactors are as follows:

A33=[a11   a120      a22]

Therefore, we get

det(A

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