Calculus (3rd Edition)

Published by W. H. Freeman
ISBN 10: 1464125260
ISBN 13: 978-1-46412-526-3

Chapter 1 - Precalculus Review - 1.4 Trigonometric Functions - Exercises - Page 29: 4


a) $\frac{\pi}{180}$ rad. b) $\frac{\pi}{6}$ rad. c) $\frac{5\pi}{36}$ rad. d) $\frac{2\pi}{3}$ rad.

Work Step by Step

a) $(1\times\frac{\pi}{180})rad = \frac{\pi}{180} rad$ b) $(30\times\frac{\pi}{180})rad = \frac{\pi}{6}rad$ c) $(25\times\frac{\pi}{180})rad = \frac{5\pi}{36}rad$ d) $(120\times\frac{\pi}{180})rad = \frac{2\pi}{3}rad$ ( Mentioning unit is not compulsory as the angle is in radians)
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