4 8 1 - A = -3 -7 -8 B = 4 -9 -4 2 1 -2 -1 4 8 9 0 0 -3 -7 -8 2 0 1 C = -1 2 0. 0. 4 -4 - 0. 1 -2 –1 2] 2)

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section9.2: Systems Of Linear Equations In Two Variables
Problem 9E
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Question

Find the inverses of A, B and C.

4 8
9.
-1
2
A
-3 -7
-8
-4
%3D
%3D
1
2
1
-2
-1
4
-3 -7 -8
0.
0.
1
C =
-1
0.
4
4
0.
0.
1
-2
-1
262
29
01
282 OO O
O 720
Transcribed Image Text:4 8 9. -1 2 A -3 -7 -8 -4 %3D %3D 1 2 1 -2 -1 4 -3 -7 -8 0. 0. 1 C = -1 0. 4 4 0. 0. 1 -2 -1 262 29 01 282 OO O O 720
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