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: 93b


$PQ = \frac{\sqrt{3}}{2}$

Work Step by Step

Let $y = PQ$: $\frac{y}{r} = sin ~60^{\circ}$ $\frac{y}{r} = \frac{\sqrt{3}}{2}$ $y = (r)~(\frac{\sqrt{3}}{2})$ $y = (1)~(\frac{\sqrt{3}}{2})$ $y = \frac{\sqrt{3}}{2}$ $PQ = \frac{\sqrt{3}}{2}$
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