Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 4 - Section 4.1 - Angles and Radian Measure - Exercise Set - Page 533: 70

Answer

$\frac{16\pi}{9}$

Work Step by Step

$\frac{-38\pi}{9}$ add three multiples of $2\pi$ in $\frac{-38\pi}{9}$ to find the positive coterminal angle less than 2$\pi$. $\frac{-38\pi}{9}$ + ($2\pi$ * 3)= $\frac{16\pi}{9}$
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