Answer
The unit digit of 4^(67) is not 4 and is not 6
Work Step by Step
"Not-(A or B)" becomes "(not-A) and (not-B)."
Discrete Mathematics with Applications 4th Edition
by Epp, Susanna S.
Published by
Cengage Learning
ISBN 10:
0-49539-132-8
ISBN 13:
978-0-49539-132-6
Chapter 2 - The Logic of Compound Statements - Exercise Set 2.1 - Page 38: 28
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