Trigonometry 7th Edition

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

Chapter 1 - Section 1.4 - Introduction to Identities - 1.4 Problem Set - Page 41: 63


c. 3

Work Step by Step

Given $\cos\theta$ = $\frac{1}{3}$ We know that $\sec\theta$ is reciprocal of $\cos\theta$. Therefore- $\sec\theta$ = $\frac{1}{\cos\theta}$ Therefore $\sec\theta$ = $\frac{1}{1/3}$ = 3
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