[2 1 ° b) Find the inverse of the matrix L = |3 4 1 with the determinant of the matrix L = -2. L3 2 1.

Elementary Linear Algebra (MindTap Course List)
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Chapter3: Determinants
Section3.1: The Determinants Of A Matrix
Problem 70E: The determinant of a 22 matrix involves two products. The determinant of a 33 matrix involves six...
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[2 1 1
b) Find the inverse of the matrix L = 3 4 1
l3 2 1.
with the determinant of the matrix L = -2.
QUESTION 2
a) Solve the linear system below using Gauss Elimination and determine whether the
solution is consistent and justified.
X1 + 2x2 + 3x3 = 1
— Зх, — 2х, — хз 3D 2
4x1 + 4x2 + 4x3 = 3
Transcribed Image Text:[2 1 1 b) Find the inverse of the matrix L = 3 4 1 l3 2 1. with the determinant of the matrix L = -2. QUESTION 2 a) Solve the linear system below using Gauss Elimination and determine whether the solution is consistent and justified. X1 + 2x2 + 3x3 = 1 — Зх, — 2х, — хз 3D 2 4x1 + 4x2 + 4x3 = 3
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