Question 6 (a) Write down the augmented matrix of the following system of simultaneous equations: z-y +z = 2 2z-y + 7: = 0 x+3y-2:= 1. (b) Showing all your working, use Gaussian elimination to solve the system

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
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Question 6
(a) Write down the augmented matrix of the following system of
simultaneous equations:
z-y +z = 2
2r-y + 7: = 0
x + 3y - 2: = 1.
(b) Showing all your working, use Gaussian elimination to solve the system
of equations from part (a).
(c) Consider the following matrix equation:
00
8)(1)-(
110
i. Write down the augmented matrix of the corresponding system of
equations.
ii. Reduce the augmented matrix to row echelon form and hence explain
why the matrix equation has infinitely many solutions.
(d) Proving your answer, find a non-zero 2 x 2 matrix A such that the
following matrix equation has no solutions:
4 (G)-(3)
Transcribed Image Text:Question 6 (a) Write down the augmented matrix of the following system of simultaneous equations: z-y +z = 2 2r-y + 7: = 0 x + 3y - 2: = 1. (b) Showing all your working, use Gaussian elimination to solve the system of equations from part (a). (c) Consider the following matrix equation: 00 8)(1)-( 110 i. Write down the augmented matrix of the corresponding system of equations. ii. Reduce the augmented matrix to row echelon form and hence explain why the matrix equation has infinitely many solutions. (d) Proving your answer, find a non-zero 2 x 2 matrix A such that the following matrix equation has no solutions: 4 (G)-(3)
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