Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 7 - Applications of Trigonometric Functions - Chapter Review - Review Exercises - Page 578: 1

Answer

$sin\theta=\frac{4}{5}$, $cos\theta=\frac{3}{5}$, $tan\theta=\frac{4}{3}$, $cot\theta=\frac{3}{4}$, $sec\theta=\frac{5}{3}$, $csc\theta=\frac{5}{4}$.

Work Step by Step

Use the given figure, we have $x=3,y=4,r=5$. $sin\theta=\frac{4}{5}$, $cos\theta=\frac{3}{5}$, $tan\theta=\frac{4}{3}$, $cot\theta=\frac{3}{4}$, $sec\theta=\frac{5}{3}$, $csc\theta=\frac{5}{4}$.
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