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Solve the following system by applying the Cramer's rule and find the determinant of matrix A (det (A)) and the first component (x1) of the solution. x1+x2+3x3=4 X1+3x2+x3=2 3x1+x2+x3=4 O det(A) = 36, x1 = 3 O det(A) = -20, x1 = 1 O det(A) = 20, x1 = 1 O det(A) = -20, x1 = -1 O det(A) = 4, ¤1 = - _ 1 4.

Solve the following system by applying the Cramer's rule and find the determinant of matrix A (det (A)) and the first component (x1) of the solution. x1+x2+3x3=4 X1+3x2+x3=2 3x1+x2+x3=4 O det(A) = 36, x1 = 3 O det(A) = -20, x1 = 1 O det(A) = 20, x1 = 1 O det(A) = -20, x1 = -1 O det(A) = 4, ¤1 = - _ 1 4.

College Algebra
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 11CC
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Solve the following system by applying the Cramer's rule and find the determinant of matrix A (det (A)) and the first component (x1) of the solution. x1+x2+3x3=4 X1+3x2+x3=2 3x1+x2+x3=4 O det(A) = 36, x1 = 3 O det(A) = -20, x1 = 1 O det(A) = 20, x1 = 1 O det(A) = -20, x1 = -1 O det(A) = 4, ¤1 = - _ 1 4.
Transcribed Image Text:Solve the following system by applying the Cramer's rule and find the determinant of matrix A (det (A)) and the first component (x1) of the solution. x1+x2+3x3=4 X1+3x2+x3=2 3x1+x2+x3=4 O det(A) = 36, x1 = 3 O det(A) = -20, x1 = 1 O det(A) = 20, x1 = 1 O det(A) = -20, x1 = -1 O det(A) = 4, ¤1 = - _ 1 4.
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