-3] 2. (a) Find the inverse of (b) Use your answer from (a) to solve the linear system. 4x – 3y = 4 -8r + 7y = 4 (c) Use your answer from (a) to solve the linear system. 4x – 3y = 0 -8x + 7y = 8

Algebra for College Students
10th Edition
ISBN:9781285195780
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Jerome E. Kaufmann, Karen L. Schwitters
Chapter12: Algebra Of Matrices
Section12.2: Multiplicative Inverses
Problem 41PS
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2. (a) Find the inverse of
(b) Use your answer from (a) to solve the linear system.
4x – 3y = 4
-8.r + 7y = 4
(c) Use your answer from (a) to solve the linear system.
4x – 3y = 0
-8r + 7y = 8
3. Let A, B, and C be n x n invertible matrices. Simplify the expression below as much
as possible.
(AC-!)-'(BA")"(B-1)".
Transcribed Image Text:2. (a) Find the inverse of (b) Use your answer from (a) to solve the linear system. 4x – 3y = 4 -8.r + 7y = 4 (c) Use your answer from (a) to solve the linear system. 4x – 3y = 0 -8r + 7y = 8 3. Let A, B, and C be n x n invertible matrices. Simplify the expression below as much as possible. (AC-!)-'(BA")"(B-1)".
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