Precalculus (6th Edition)

Published by Pearson
ISBN 10: 013421742X
ISBN 13: 978-0-13421-742-0

Chapter 5 - Trigonometric Functions - 5.3 Trigonometric Functions Values and Angle Measures - 5.3 Exercises - Page 533: 78

Answer

$\frac{1}{2}$, $ \frac{\sqrt 3}{2}$, $ \frac{\sqrt 3}{3}$, $ \sqrt 3$, $ \frac{2\sqrt 3}{3}$, and $ 2$.

Work Step by Step

Given $\theta=750^\circ=2\times360^\circ+30^\circ$ (quadrant I), we have $sin\theta =sin30^\circ=\frac{1}{2}$, $cos\theta =cos30^\circ=\frac{\sqrt 3}{2}$, $tan\theta =tan30^\circ=\frac{\sqrt 3}{3}$, $cot\theta = \frac{1}{tan\theta}=\sqrt 3$, $sec\theta = \frac{1}{cos\theta}=\frac{2\sqrt 3}{3}$, and $csc\theta = \frac{1}{sin\theta}=2$.
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