MATH 1025 Study Guide - Midterm Guide: Row Echelon Form, 32X, Elementary Matrix

• School: York University
• Department: Mathematics and Statistics
• Course: MATH 1025
• Professor: Hans Joshi

Document Summary

Instructions: time allowed: 50 minutes, there are 5 questions on 5 pages, answer all questions, your work must justify the answer you give, no calculators or other aids permitted. 1. (a) (8 points) find all solutions to. January 24, 2005 x1 + 3x2 2x3 + 5x4 = 4. 2. (a) (4 points) find the row echelon form of 1. January 24, 2005 (b) (3 points) for which values of k does the system. Let a = (a) (4 points) write a 1 as a product of elementary matrices. January 24, 2005 (b) (3 points) determine a 1. Math 1025: (7 points) find a 1, where. 4 satis es a3 a2 a 2i = 0. (a) (3 points) write a 1 as a polynomial expression in a. Hint: a3 a2 a = 2i. (b) (3 points) use the expression you gave in (a) to nd a 1. Note: no credit will be given for solutions which do not use (a).