3. Which of the following is the cofactor of the entry -l of the matrix A in tlhe previous item? (a) -8 (b) 8 (e) - 16 (d) 16

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section: Chapter Questions
Problem 42RE
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Question
answer only number
3
2
2. Which of the following is the determinant of the matrix A =
-2
-2 1
2.
1
1
3
-3
4
(a) 131
(b) 7
(c) -1:31
(d) -7
3. Whhich of the following is the cofactor of the entry -l of tho matrix A in tlie previous itemn?
(a)-8
(b) 8
(c)-16
(d) 16
Transcribed Image Text:answer only number 3 2 2. Which of the following is the determinant of the matrix A = -2 -2 1 2. 1 1 3 -3 4 (a) 131 (b) 7 (c) -1:31 (d) -7 3. Whhich of the following is the cofactor of the entry -l of tho matrix A in tlie previous itemn? (a)-8 (b) 8 (c)-16 (d) 16
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