Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter R - Review of Basic Concepts - Chapter R Test Prep - Review Exercises: 25

Answer

irrational number; real number

Work Step by Step

RECALL: (1) $\pi$ is an irrational number. (2) The product of a rational number and an irrational number is an irrational number. (3) All irrational numbers are real numbers. Thus, $\dfrac{4\pi}{5}$ is both an irrational number and a real number.
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