Exercise 4.27 Let A be a given matrix. Show that the following two state- ments are equivalent. (a) Every vector such that Ax ≥ 0 and x ≥ 0 must satisfy x1 = 0. (b) There exists some p such that p'A ≤ 0, p≥ 0, and p'A₁ <0, where A₁ is the first column of A.
Exercise 4.27 Let A be a given matrix. Show that the following two state- ments are equivalent. (a) Every vector such that Ax ≥ 0 and x ≥ 0 must satisfy x1 = 0. (b) There exists some p such that p'A ≤ 0, p≥ 0, and p'A₁ <0, where A₁ is the first column of A.
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter3: Matrices
Section3.7: Applications
Problem 13EQ
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