Let A be a 3 × 4 matrix. If b = a1 + a2 + a3 + a4 then what can you conclude about the number of solutions to the linear system Ax = b? Explain.

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter7: Systems Of Equations And Inequalities
Section7.6: Solving Systems With Gaussian Elimination
Problem 5SE: Can a matrix that has 0 entries for an entire row have one solution? Explain why or why not.
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Let A be a 3 × 4 matrix. If
b = a1 + a2 + a3 + a4
then what can you conclude about the number of
solutions to the linear system Ax = b? Explain.

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