Consider the following Gauss elimination: Го 1 1. 1 0 3 T2 -3 -9 0 EA → |0 9 0 E2EA→ 0 1 0 E3 E2E¡A = | 0 0 1 | 1 0 |A → 0 1 4 1 0 0 1 4 E What is the determinant of A? det(A) =

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Consider the following Gauss elimination:
0.
1
1
1
1.
3
2
-3
-9
1
0 |A →
0 1
0 EA →
0 9
0 E,E, A →
1
0 E3 E2 E, A =
4
1 0 0
0 0 8
0 0
1
1
4
E1
E2
E3
E4
What is the determinant of A?
det(A) =
Transcribed Image Text:Consider the following Gauss elimination: 0. 1 1 1 1. 3 2 -3 -9 1 0 |A → 0 1 0 EA → 0 9 0 E,E, A → 1 0 E3 E2 E, A = 4 1 0 0 0 0 8 0 0 1 1 4 E1 E2 E3 E4 What is the determinant of A? det(A) =
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