In Exercises 5-12, evaluate the determinant of the given matrix by cofactor expansion along the indicated row. 5. 9. 1 0 2 3 along the first row 4) 2 3 along the second row 0 (7 0 47 1²-1) along the third row I₂ 0 0 -2 3 -1 0 1 2 along the fourth row 6. 10. 12. 01 5 3 0 along the first row 102 0 1 5 along the third row G -1 3 1 0 27 0 -1 along the second row 2 1 2 5 -3 6 along the fourth row 8
In Exercises 5-12, evaluate the determinant of the given matrix by cofactor expansion along the indicated row. 5. 9. 1 0 2 3 along the first row 4) 2 3 along the second row 0 (7 0 47 1²-1) along the third row I₂ 0 0 -2 3 -1 0 1 2 along the fourth row 6. 10. 12. 01 5 3 0 along the first row 102 0 1 5 along the third row G -1 3 1 0 27 0 -1 along the second row 2 1 2 5 -3 6 along the fourth row 8
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section9.8: Determinants
Problem 11E
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![In Exercises 5-12, evaluate the determinant of the given matrix by cofactor
expansion along the indicated row.
5.
7.
9.
11.
6.10 (10
-3
5
2 3
3
along the first row
along the first row
2)
2
along the second row
0
3
0
-21 0
3
0
along the third row
10 2
3 -1
-2
12
along the fourth row
6.
8.
10.
12.
1 0 2)
0 1 5
1 3 0
along the third row
1
2+1
3
0
21
1-1
0
along the second row
2
14
1
-5 -3
6-4
along the fourth row
3
18](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ffc8ffaf8-ba67-424b-bc42-2736766b525e%2F013f9164-59c3-4c9d-ab58-e3ff4da7b61b%2Fc9ps0a8_processed.jpeg&w=3840&q=75)
Transcribed Image Text:In Exercises 5-12, evaluate the determinant of the given matrix by cofactor
expansion along the indicated row.
5.
7.
9.
11.
6.10 (10
-3
5
2 3
3
along the first row
along the first row
2)
2
along the second row
0
3
0
-21 0
3
0
along the third row
10 2
3 -1
-2
12
along the fourth row
6.
8.
10.
12.
1 0 2)
0 1 5
1 3 0
along the third row
1
2+1
3
0
21
1-1
0
along the second row
2
14
1
-5 -3
6-4
along the fourth row
3
18
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