NE112-quiz1

NE112-quiz1 - x 1 – 2x 2 + 3x 3 = 12 2x 1 – 3x 2 + x 3...

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NE112 – Linear Algebra Quiz # 1 Student Name: Student Number: Instructions The quiz is closed notes closed books. Write your name and student number on the front page and your student name on the back of the last page. You may use a non- programmable calculator. Problem 1. Use elimination and back substitution to solve the following system of equations. Show your work.
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Unformatted text preview: x 1 – 2x 2 + 3x 3 = 12 2x 1 – 3x 2 + x 3 = 0-3x 1-4x 2 + 2x 3 = -21 Problem 2. The following matrix represents the reduced row echelon form of an augmented matrix for a system of three equations in unknowns x 1 , x 2 , and x 3 . 4 3 1 3 2 1 What is the solution of the system? Student Name:...
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This note was uploaded on 10/08/2010 for the course NE 112 taught by Professor Vanelli during the Spring '10 term at Waterloo.

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NE112-quiz1 - x 1 – 2x 2 + 3x 3 = 12 2x 1 – 3x 2 + x 3...

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