Trigonometry 7th Edition

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

Chapter 5 - Section 5.4 - Half-Angle Formulas - 5.4 Problem Set - Page 305: 53

Answer

See the steps.

Work Step by Step

$RHS =\dfrac{\tan{\theta} +\sin{\theta}}{2\tan{\theta}}$ Dividing both numerator and denominator by $\tan{\theta}$ $RHS = \dfrac{1+\dfrac{\sin{\theta}}{\tan{\theta}}}{{2}} = \dfrac{1+\cos{\theta}}{2}= \cos^2{\dfrac{\theta}{2}} = LHS$
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.