Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Chapter 2 - Section 2.1 - Definition II: Right Triangle Trigonometry - 2.1 Problem Set: 78

Answer

$ 150^{\circ}$

Work Step by Step

Given angle = $ -210^{\circ}$ Angle coterminal with $ -210^{\circ}$ between $0^{\circ}$ and $360^{\circ}$ will be- = $ -210^{\circ} + 360$ = $ 150^{\circ}$
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