2. 3. An elementary row operation was applied to 3 -1 -1 obtaining the matrix 2 Which 1 -3 4 of the following elementary row operations was applied? (a) E12(-3) (b) Еi2(3) (c) E21(-3) (d) E21(3) 2, -1 7 -3 -8 1 0 4. The reduced row echelon form of 1 2 4 is 0 1 0 d 0 Which of the fol- -2 -1 8 0 0 0 1 e lowing is the value of a +b+ c+d+e? (а) — 6 (b) 4 (c) 6 (d) –4
2. 3. An elementary row operation was applied to 3 -1 -1 obtaining the matrix 2 Which 1 -3 4 of the following elementary row operations was applied? (a) E12(-3) (b) Еi2(3) (c) E21(-3) (d) E21(3) 2, -1 7 -3 -8 1 0 4. The reduced row echelon form of 1 2 4 is 0 1 0 d 0 Which of the fol- -2 -1 8 0 0 0 1 e lowing is the value of a +b+ c+d+e? (а) — 6 (b) 4 (c) 6 (d) –4
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.2: Direct Methods For Solving Linear Systems
Problem 22EQ: Consider the matrix A=[2314]. Show that any of the three types of elementary row operations can be...
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