Thinking Mathematically (6th Edition)

Published by Pearson
ISBN 10: 0321867327
ISBN 13: 978-0-32186-732-2

Chapter 5 - Number Theory and the Real Number System - 5.4 The Irrational Numbers - Exercise Set 5.4 - Page 299: 104



Work Step by Step

Recall that $\pi\approx3.14159$. Thus, $-\dfrac{\pi}{2} \approx -\dfrac{3.14159}{2}\approx-1.570795$ Since $-\dfrac{3.14}{2}-1.57$, then $-\dfrac{3.14}{2} \gt -\dfrac{\pi}{2}$
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