Fall 2021

Math 3120 Introduction to Linear Algebra

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Homework 3

Due Monday October 11, in class
  • Section 2.3 Row Space and the Rank-Nullity Theorem
    • Read Section 2.3. Do the True/False questions (pp. 139-140). Do Problem 2.56. WeBWorK reading question due September 24 @ 9:45 am.
    • In class (group work): 2.57(b), 2.63, 2.66
    • Homework: 2.57(d), 2.58, 2.61, 2.64, 2.68, 2.69, 2.71, 2.72
    • Hand In: 2.57(d), 2.69, 2.71, 2.72
    • WeBWorK assignment due October 4 @ 11 pm
  • Section 3.1 The Linearity Properties
    • Read Section 3.1. Do the True/False questions (p. 154). Do Problems 3.1, 3.3. WeBWorK reading question due October 1 @ 9:45 am.
    • In class (group work): 3.5, 3.12, 3.14(b)
    • Homework: 3.6, 3.7, 3.8, 3.9, 3.10, 3.11, 3.13, 3.14, 3.16, 3.18, 3.19, 3.20, 3.21, 3.22, 3.23
    • Hand In: 3.6, 3.14(e), 3.18, 3.23
    • WeBWorK assignment due October 11 @ 11 pm
  • Section 3.2 Matrix Multiplication (Composition)
    • Read Section 3.2. Do the True/False questions (p. 171). Do Problems 3.25, 3.26. WeBWorK reading question due October 6 @ 9:45 am.
    • In class (group work): 3.40, 3.43
    • Homework: 3.28, 3.29, 3.30, 3.34, 3.33, 3.41, 3.45, 3.48, 3.50, 3.53, 3.55, 3.57
    • Hand In: 3.33, 3.41, 3.53
    • WeBWorK assignment due October 13 @ 11 pm