Trigonometry 7th Edition

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

Chapter 4 - Section 4.5 - Finding an Equation from Its Graph - 4.5 Problem Set - Page 244: 46

Answer

$55^\circ$.

Work Step by Step

Since $-125+360=235$ is in Q3, its reference angle is $\theta-180$, which is $55^\circ$.
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