Answer
$\frac{16\pi}{9}\approx5.59\ rad$
Work Step by Step
As $1^\circ=\frac{\pi}{180}\ rad$, we have $320^\circ=320\times\frac{\pi}{180}=\frac{16\pi}{9}\approx5.59\ rad$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 5 - Cumulative Review Exercises - Page 709: 15
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