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 559: 15

Answer

$-\frac{4}{5}, \frac{3}{5}, \frac{-4}{3}, -\frac{3}{4}, \frac{5}{3}, -\frac{5}{4}$

Work Step by Step

Given point $(3,-4)$ on the terminal side, we have: 1. $sin\theta=\frac{-4}{\sqrt {(3)^2+(-4)^2}}=-\frac{4}{5}$ 2. $cos\theta=\frac{3}{\sqrt {(3)^2+(-4)^2}}=\frac{3}{5}$ 3. $tan\theta=\frac{-4}{3}$ 4. $cot\theta=\frac{1}{tan\theta}=-\frac{3}{4}$ 5. $sec\theta=\frac{1}{cos\theta}=\frac{5}{3}$ 6. $csc\theta=\frac{1}{sin\theta}=-\frac{5}{4}$
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