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.
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.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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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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