Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Chapter 3 - Radian Measure and the Unit Circle - Section 3.3 The Unit Circle and Circular Functions - 3.3 Exercises - Page 126: 93a


$OQ = \frac{1}{2}$

Work Step by Step

Let $x = OQ$: $\frac{x}{r} = cos ~60^{\circ}$ $\frac{x}{r} = \frac{1}{2}$ $x = (r)~(\frac{1}{2})$ $x = (1)~(\frac{1}{2})$ $x = \frac{1}{2}$ $OQ = \frac{1}{2}$
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