Answer
$2$
Work Step by Step
We're given
$$2\cdot2\cdot2$$
Using the associativity of multiplication:
$$(2\cdot2)\cdot2$$
Using the definition of multiplication for $\mathbb{Z}_3$, we compute
$$(1)\cdot2$$
And finally
$$2$$
Linear Algebra: A Modern Introduction
by Poole, David
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 - Page 17: 32
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