Consider the matrix a) Find the determinant of A. det (A) = -30 b) If det (A) = 0, find the inverse of A. A ə ab sin (a) əx 1 30 c) Verify your answer in (b). A-¹A = ə ab sin (a) əx f ∞ ∞ A = a a [ -5 5 Ω Ω 4 2 X

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section9.8: Determinants
Problem 8E
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Consider the matrix
a) Find the determinant of A.
det (A) = -30
b) If det (A) = 0, find the inverse of A.
A
1
=
sin (a)
f
əx
a
1
30
c) Verify your answer in (b).
A-¹A =
sin (a)
a
f
əx
∞
∞
A =
a
a
-5 4
2
X
AZ
Transcribed Image Text:Consider the matrix a) Find the determinant of A. det (A) = -30 b) If det (A) = 0, find the inverse of A. A 1 = sin (a) f əx a 1 30 c) Verify your answer in (b). A-¹A = sin (a) a f əx ∞ ∞ A = a a -5 4 2 X AZ
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