5. Find the cofactor matrix and then solve the following system: 3x1 - x2 + x3 = 4 -x, + 7x, – 2x3 = 1 2x1 + 6x2 X3 = 5

Elements Of Modern Algebra
8th Edition
ISBN:9781285463230
Author:Gilbert, Linda, Jimmie
Publisher:Gilbert, Linda, Jimmie
Chapter1: Fundamentals
Section1.6: Matrices
Problem 6E
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5.
Find the cofactor matrix and then solve the following system:
3x1 - x2 + x3 = 4
-X1 + 7x2 – 2x, = 1
2.x1 + 6x2 – x3 = 5
Transcribed Image Text:5. Find the cofactor matrix and then solve the following system: 3x1 - x2 + x3 = 4 -X1 + 7x2 – 2x, = 1 2.x1 + 6x2 – x3 = 5
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