Homework 2
MATH 231
Due Wednesday, September 17, 2025
 

Instructions. We wiill have a quiz in class on the due date based on the content from the assignment. See the back of the textbook for solutions and hints for odd-numbered problems. Click here for a pdf version of the homework.

Exercise 1.

Complete the following exercises from Section 1.2 in the course textbook:

# 7, 9, 11, 13, 15, 17, 19, 20, 21, 22, 35, 36, 45

Exercise 2.

Complete the following exercises from Section 1.3 in the course textbook:

# 1,3, 5, 9, 11, 13, 15, 17, 18, 27, 28, 29, 30, 31, 32

Exercise 3.

Complete the following exercises from Section 1.4 in the course textbook:

# 1, 3, 7, 9, 11, 13, 14, 15,

Exercise 4.

Let $𝐯\in {ℝ}^n$. Give an argument for the fact that if $𝐯\cdot 𝐯=0$, then $𝐯=0$. (I discussed this quickly in class.)