Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 5 - Trigonometric Functions - Section 5.4 Graphs of the Sine and Cosine Functions* - 5.4 Assess Your Understanding - Page 435: 96

Answer

$(\frac{\pi}{6},\frac{1}{2})$, $(\frac{5\pi}{6},\frac{1}{2})$, $(\frac{13\pi}{6},\frac{1}{2})$, $(\frac{17\pi}{6},\frac{1}{2})$.

Work Step by Step

1. To find the intersects, let $sin(x)=\frac{1}{2}$, in a unit circle, this corresponds to angles $x=\frac{\pi}{6}$ and $x=\frac{5\pi}{6}$. 2. The period of the function is $2\pi$, thus we can find four intersects $(\frac{\pi}{6},\frac{1}{2})$, $(\frac{5\pi}{6},\frac{1}{2})$, $(\frac{13\pi}{6},\frac{1}{2})$, $(\frac{17\pi}{6},\frac{1}{2})$.
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.