For this problem use the following matrix (this is the same matrix as problem 7) 1 1 31 A = -2 2 1 1 1. a) By hand, compute the inverse matrix b) How could you check your answer here?

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section9.8: Determinants
Problem 34E
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For this problem use the following matrix (this is the same matrix as problem 7)
1
1 3]
A =
2 2 1
1 1
a) By hand, compute the inverse matrix
b) How could you check your answer here?
Transcribed Image Text:For this problem use the following matrix (this is the same matrix as problem 7) 1 1 3] A = 2 2 1 1 1 a) By hand, compute the inverse matrix b) How could you check your answer here?
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