2. Consider the following matrix A: A = -2 23 1 -1 0 0 1-4] a. What is det(A)? b. If det (A) is non-zero, find its inverse A¹¹.

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter7: Systems Of Equations And Inequalities
Section7.7: Solving Systems With Inverses
Problem 3SE: Can you explain whether a 2×2 matrix with an entire row of zeros can have an inverse?
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2. Consider the following matrix A:
-2
1
0
2 3
-1 0
1-4
a.
What is det(A)?
b. If det (A) is non-zero, find its inverse A¹.
Transcribed Image Text:2. Consider the following matrix A: -2 1 0 2 3 -1 0 1-4 a. What is det(A)? b. If det (A) is non-zero, find its inverse A¹.
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