Precalculus (6th Edition)

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

Chapter 5 - Trigonometric Functions - Chapter 5 Test Prep - Review Exercises - Page 560: 33

Answer

$-\frac{\sqrt 3}{2},\frac{1}{2},-\sqrt 3,-\frac{\sqrt {3}}{3},2,-\frac{2\sqrt 3}{3}$

Work Step by Step

1. Given $\theta=1020^\circ=3\times360^\circ-60^\circ$, we can identify it is in quadrant IV with a reference angle $60^\circ$, we have: 2. $sin\theta=-sin60^\circ=-\frac{\sqrt 3}{2}$ 3. $cos\theta=cos60^\circ=\frac{1}{2}$ 4. $tan\theta=-tan60^\circ=-\sqrt 3$ 5. $cot\theta=\frac{1}{tan\theta}=-\frac{\sqrt {3}}{3}$ 6. $sec\theta=\frac{1}{cos\theta}=2$ 7. $csc\theta=\frac{1}{sin\theta}=-\frac{2\sqrt 3}{3}$
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