MATH 240 Lecture 29: Assignment 3
25 Jan 2019
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We will post the solutions thursday evening at 8:30pm. The midterm is on monday october 22nd in class. It covers assignments 1,2,3 and is weighted 50% on assignment 3, 25% on assignment 1 and 25% on assignment 2. 2. 2 additional exercise: let a by a 3 3 matrix and let b be the matrix obtained from. A using the row operation r2 r2 3r3. Find the corresponding 3 3 elementary matrix e such that ea = b then nd e 1. Additional exercise: calculate the determinants of the following matrices. 3. 2 exercises 5, 22, 32, 33, 34, 40. For exercises 32, 33, 34 and 40 use theorems 3,4,5,6. For questions 20 and 29 you must use determinants. 4. 1 exercises 2(b), 6, 8, 12, 26, 28. Questions 6 and 8 are asking you to prove or disprove that the set of polynomials is a subspace. 4. 2 exercises 4, 16, 24, 25, 32, 33(a)
