1 First use the formula A = 68 ^-[:] A = 46 b= 2 3 1 ad-bc d -C -b a for the general 2x2 matrix A = a b c d to find A 1 -1 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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First use the formula A
A =
68
4 6
1
-1
• ad-be[-6.] for the
=
bc
l; b =
2
3
for the general 2 x 2 matrix A =
a b
c d
-1
to find A¹. Then use A to solve the system Ax = b.
Transcribed Image Text:First use the formula A A = 68 4 6 1 -1 • ad-be[-6.] for the = bc l; b = 2 3 for the general 2 x 2 matrix A = a b c d -1 to find A¹. Then use A to solve the system Ax = b.
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