Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 6 - The Circular Functions and Their Graphs - 6.2 The Unit Circle and Circular Functions - 6.2 Exercises: 48

Answer

$\color{blue}{\cos{0.6} \approx 0.8}$

Work Step by Step

To approximate the value of $\cos{0.6}$, look for the x-value of the point where the terminal side o the angle 0.6 radian crosses the unit circle. Notice that for the given angle, the x-value of the point described above is around $0.8$. Thus, $\color{blue}{\cos{0.6} \approx 0.8}$
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.