| 1 2 3 1. Let M = a b с and suppose that det M = −2. d e f For each of the following find the determinant of the matrix and mention a property of the determinant function that allows to determine the numerical value. (a) (b) 2 a b 6 C 3d 3e 3f e f 1 2 3 a 20 b C 3 (c) a - d a 1 b-2 c - 3 e f b с 1 (d) 2a a 3 2b 2c b с 220 (e) (M-1)2

Intermediate Algebra
19th Edition
ISBN:9780998625720
Author:Lynn Marecek
Publisher:Lynn Marecek
Chapter4: Systems Of Linear Equations
Section4.6: Solve Systems Of Equations Using Determinants
Problem 4.93TI: Evaluate the determinant |324012231| , by expanding by minors along the first row.
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| 1
2 3
1. Let M
=
a
b с and suppose that det M = −2.
d
e
f
For each of the following find the determinant of the matrix and
mention a property of the determinant function that allows to
determine the numerical value.
(a)
(b)
2
a
b
6
C
3d 3e 3f
e f
1 2 3
a
20
b
C
3
(c)
a
-
d
a
1
b-2
c - 3
e
f
b
с
1
(d)
2a
a
3
2b 2c
b
с
220
(e) (M-1)2
Transcribed Image Text:| 1 2 3 1. Let M = a b с and suppose that det M = −2. d e f For each of the following find the determinant of the matrix and mention a property of the determinant function that allows to determine the numerical value. (a) (b) 2 a b 6 C 3d 3e 3f e f 1 2 3 a 20 b C 3 (c) a - d a 1 b-2 c - 3 e f b с 1 (d) 2a a 3 2b 2c b с 220 (e) (M-1)2
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