First use the formula A¯1 = A = X= Find A1. ·[ Solve the system. 1 A = 32 43 b= 3-2 -2 [3] -4 -4 3 1 ad-bc d - b -C a for the general 2x2 matrix A= a b ::]- c d to find A. Then use A ... to solve the system Ax = b.

Algebra and Trigonometry (6th Edition)
6th Edition
ISBN:9780134463216
Author:Robert F. Blitzer
Publisher:Robert F. Blitzer
ChapterP: Prerequisites: Fundamental Concepts Of Algebra
Section: Chapter Questions
Problem 1MCCP: In Exercises 1-25, simplify the given expression or perform the indicated operation (and simplify,...
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Question
First use the formula A¯¹;
=
A =
Find A1.
A`1.
32
4 3
X =
3
-4
b=
- 2
3
Solve the system.
- 2
-4
1
ad - bc
d - b
- C
a
for the general 2 x 2 matrix A =
a b
c d
1
- 1
to find A¹. Then use A
to solve the system Ax = b.
Transcribed Image Text:First use the formula A¯¹; = A = Find A1. A`1. 32 4 3 X = 3 -4 b= - 2 3 Solve the system. - 2 -4 1 ad - bc d - b - C a for the general 2 x 2 matrix A = a b c d 1 - 1 to find A¹. Then use A to solve the system Ax = b.
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