In Exercises 21-26, evaluate det(A) by a cofactor expansion along a row or column of your choice. 21. A = -3 0 7 [-] 2 5 1 22. A = 1 0 -4 -1 0 5 3 3 1 1 -3 5
In Exercises 21-26, evaluate det(A) by a cofactor expansion along a row or column of your choice. 21. A = -3 0 7 [-] 2 5 1 22. A = 1 0 -4 -1 0 5 3 3 1 1 -3 5
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Transcribed Image Text:In Exercises 21-26, evaluate det(A) by a cofactor expansion
along a row or column of your choice.
+-+
21. A =
-3
2
-1
0
7
5
1
0 5
22. A =
3 3 1
1
0
–4
1
-3
5
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