Question -x₁+3x₂ = 2 2x1 + x₂ + 4x3 = 3 x2 + 2x3 = 4 (a) Using [IA] [A¹1], Find A-¹. (b)Find Adj A. (c)Using Adj A, find A-¹. (d) Are the matrices that are the inverse of the matrix A you obtained in cases a and c equal to each other? If yes, find the unknowns (x1, x2, x3) using the inverse of A. 2
Question -x₁+3x₂ = 2 2x1 + x₂ + 4x3 = 3 x2 + 2x3 = 4 (a) Using [IA] [A¹1], Find A-¹. (b)Find Adj A. (c)Using Adj A, find A-¹. (d) Are the matrices that are the inverse of the matrix A you obtained in cases a and c equal to each other? If yes, find the unknowns (x1, x2, x3) using the inverse of A. 2
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section9.8: Determinants
Problem 2E
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