M123 Test 2 Review Sheet

M123 Test 2 Review Sheet - Math 123 Test 2 Review Sheet;...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Math 123 Test 2 Review Sheet; Test Date: October 22, 2007 1 Dr. Michael A. Unseren Test Policies Exam is closed book/closed note, no calculator 10% Penalty for Cell Phone/Pager/Beeper sounding during the official exam period. Use the restroom before the test. I will only permit you to leave the classroom in the event of an emergency. o If you must leave the classroom due to an emergency, give your exam to me. I will give it back to you when you return to the classroom. Please do not talk to anyone except your instructor/proctor until the exam is officially over so as not to disturb those who are still working. Show me a picture ID when submitting your exam. NOTATION: 1. In this review, “_” denotes a subscript. E.g., x_1 means variable x sub 1; I_n denotes and (nxn) identity matrix. 2. Also, ^ denotes superscript so A^t means the transpose of matrix A. 3. B^(-1) denotes the inverse of square matrix B. 4. AB denotes the multiplication of matrices A and B. a. Remember: row length of A must equal column length of B for the matrices to be compatible for multiplication. The test encompasses the following: Solving a system of n linear equations in n unknowns: ± If your work reveals there is not a unique solution, state either “Inconsistent-No Solution” and point out the inconsistency or state “Dependent-Infinitely Many Solutions”. Further, if the system is dependent, give a parameterized solution for the system. ± If your work reveals there is a unique solution, state “Unique Solution” and give the solution for each variable. Review all quizzes pertaining to chapter 3 material. Study lecture notes and problems solved during lectures. If I ask you to obtain to row-reduce a matrix, you must obtain row-reduced form (page 182). Section 3.1 Systems of two linear equations in two unknowns. Study the yellow box on page 152. What is the restriction on the coefficients?
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Math 123 Test 2 Review Sheet; Test Date: October 22, 2007 2 Word problems: set up a system of two linear equations in two variables (or three linear equations in three variables) given a word problem. Define all variables and the meaning of each equation. Look at example 1 and practice problem 1.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This test prep was uploaded on 04/22/2008 for the course MATH 123 taught by Professor Unseren during the Spring '08 term at University of Tennessee.

Page1 / 4

M123 Test 2 Review Sheet - Math 123 Test 2 Review Sheet;...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online