2. Consider the matrix equation Ax = b where A = 1 1 1 1 -1 1 -1 1 1 1 1 1 a) Compute det A. b) Use Cramer's rule to compute the value of x3. X1 X2 -0-8 b = X3 X4 X = 5

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter9: Systems Of Equations And Inequalities
Section9.9: Properties Of Determinants
Problem 37E
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2. Consider the matrix equation Ax = b where
A =
1
1
1
-1
1
1
-1
1
1
1
1 1
a) Compute det A.
b) Use Cramer's rule to compute the value of x3.
X =
X1
X2
X3
X4
b =
5
Transcribed Image Text:2. Consider the matrix equation Ax = b where A = 1 1 1 -1 1 1 -1 1 1 1 1 1 a) Compute det A. b) Use Cramer's rule to compute the value of x3. X = X1 X2 X3 X4 b = 5
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