Let Ax = b be a linear system with real coefficients such that A is an m × n matrix and Ax = b has a unique solution. What can you say about m, n? Explain how to pick a subsystem of n equations in Ax = b such that the two systems have the same solutions.

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter6: Matrices And Determinants
Section6.1: Matrices And Systems Of Linear Equations
Problem 1E: If a system of linear equations has infinitely many solutions, then the system is called _____ . If...
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Let Ax = b be a linear system with real coefficients such that A is an m × n matrix
and Ax = b has a unique solution. What can you say about m, n? Explain how to pick
a subsystem of n equations in Ax = b such that the two systems have the same solutions.

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