In Exercises 19–22, determine by inspection whether the ma- trix is invertible. 19. 0 6 0 7 0 0 -4 -2 20. 2 3 005 · 1 0 0
In Exercises 19–22, determine by inspection whether the ma- trix is invertible. 19. 0 6 0 7 0 0 -4 -2 20. 2 3 005 · 1 0 0
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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Question
19
show all the work please
Transcribed Image Text:In Exercises 19-22, determine by inspection whether the ma-
trix is invertible.
19.
21.
0
0
0
6
1
7 -4
0-2
1
0
2 -5
4 -3
1
-2
0
0
0 0
4 0
1 3
20.
22.
1
0
0
24
3
0
0
5
2000
-3 −1
0 0
-4 -6
00
038 - 5
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