4. Find A-1 for the following Matrix [1 3] (a) A = 3 7 [2 5 (b) А — 7 17 [3 (c) A = 4 12 19

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter6: Matrices And Determinants
Section: Chapter Questions
Problem 7CC: If A and B are matrices with the same dimension and k is a real number, how do you find A+B and kA ?
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4. Find A-1 for the following Matrix
[1 3]
(a) A =
3 7
[2 5
(b) А —
7 17
3 4
(c) A =
12 19
Transcribed Image Text:4. Find A-1 for the following Matrix [1 3] (a) A = 3 7 [2 5 (b) А — 7 17 3 4 (c) A = 12 19
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