a b 1 12. Use matrix multiplication to confirm that the inverse of the matrix A = where we assume that ad - bc #0. [To show this generally, you cannot plug in numbers for a, b, c, d.] [od] C ad-bc-c is A-1 d -b a

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter7: Systems Of Equations And Inequalities
Section7.7: Solving Systems With Inverses
Problem 1SE: In a previous section, we showed that matrix multiplication is not commutative, that is, ABBA in...
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d
12. Use matrix multiplication to confirm that the inverse of the matrix A =
is A-¹ =
where we assume that ad - bc #0. [To show this generally, you cannot plug in numbers for a, b, c, d.]
1
ad-bc
с
-b
Transcribed Image Text:d 12. Use matrix multiplication to confirm that the inverse of the matrix A = is A-¹ = where we assume that ad - bc #0. [To show this generally, you cannot plug in numbers for a, b, c, d.] 1 ad-bc с -b
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