Answer
$ \frac{\sqrt 6}{2}$
Work Step by Step
$sin75^\circ +sin15^\circ=2sin(\frac{75^\circ +15^\circ}{2})cos(\frac{75^\circ -15^\circ}{2})=2sin(45^\circ)cos(30^\circ)=2(\frac{\sqrt 2}{2})(\frac{\sqrt 3}{2})
=\frac{\sqrt 6}{2}$
Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)
by Sullivan III, Michael
Published by
Pearson
ISBN 10:
0-32193-104-1
ISBN 13:
978-0-32193-104-7
Chapter 6 - Analytic Trigonometry - Chapter Test - Page 529: 23
Update this answer!
You can help us out by revising, improving and updating this answer.
Update this answerAfter 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.
