Linear Algebra: A Modern Introduction

Published by Cengage Learning
ISBN 10: 1285463242
ISBN 13: 978-1-28546-324-7

Chapter 1 - Vectors - 1.1 The Geometry and Algebra of Vectors - Exercises 1.1: 38

Answer

$2$.

Work Step by Step

First perform the computation in $\mathbb{Z}$: $$(3+4)(3+2+4+2)=(7)(11)=77$$ To convert this to $\mathbb{Z}_5$, we must find the remainder of $77$ divided by $5$, which is $2$.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.