Let A =| de f g hi Assuming that det(A) = -7, find %3D (a) det(3A) (b) det(A) (c) det(2A-) a (d) det((2A)) (e) det b h
Let A =| de f g hi Assuming that det(A) = -7, find %3D (a) det(3A) (b) det(A) (c) det(2A-) a (d) det((2A)) (e) det b h
Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter3: Determinants
Section3.CR: Review Exercises
Problem 47CR
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![Q2.
Let
a b
A = d e
f
ghi
Assuming that det(A) = -7, find
(a) det(3A)
(b) det(A)
(c) det(2A)
a
(d) det((2A) )
(e) det b he
03. Decide whether the matrix is invertible, and if so, use the adjoint method to find
its inverse
2
5
2
3
A =
-1
-1
A =
3
2
4
-2
-4
3.
2.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1b9d59e7-b5e2-4540-869d-f531fbf38a89%2Fe8937e26-677d-4660-8f43-76e4c9d3fad9%2Feu7wcyn_processed.png&w=3840&q=75)
Transcribed Image Text:Q2.
Let
a b
A = d e
f
ghi
Assuming that det(A) = -7, find
(a) det(3A)
(b) det(A)
(c) det(2A)
a
(d) det((2A) )
(e) det b he
03. Decide whether the matrix is invertible, and if so, use the adjoint method to find
its inverse
2
5
2
3
A =
-1
-1
A =
3
2
4
-2
-4
3.
2.
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