2. Solve the system by Gauss elimination: х-Зу+z%3D1 2х- у+2z %3D2 x+2y– 3z = –1

Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter12: Algebra Of Matrices
Section12.CT: Test
Problem 20CT
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SHOW COMPLETE AND CORRECT SOLUTIONS IN ANSWERING THE FOLLOWING
PROBLEMS. ANSWER 2 ONLY. 

1. Solve the system by using A-1, the inverse of the coefficient matrix:
х - Зу+z%31
2х- у + 2z %3D 2
x+2y- 3z = -1
2. Solve the system by Gauss elimination:
х-Зу+z%3D1
2x – y+2z = 2
x+2y- 3z = -1
Transcribed Image Text:1. Solve the system by using A-1, the inverse of the coefficient matrix: х - Зу+z%31 2х- у + 2z %3D 2 x+2y- 3z = -1 2. Solve the system by Gauss elimination: х-Зу+z%3D1 2x – y+2z = 2 x+2y- 3z = -1
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