Precalculus: Mathematics for Calculus, 7th Edition

Published by Brooks Cole
ISBN 10: 1305071751
ISBN 13: 978-1-30507-175-9

Chapter 6 - Review - Exercises - Page 529: 54

Answer

$\sin \theta = -\frac{9}{41}$ $\cos \theta = \frac{40}{41}$ $\tan \theta = -\frac{9}{40}$ $\cot \theta = -\frac{40}{9} $

Work Step by Step

We have the following information : $\sec \theta = \frac{r}{x} = \frac{41}{40}$ $\csc \theta = \frac{r}{y} = -\frac{41}{9}$ It's clear, that : $x=40$ $y=-9$ $r=41$ So, the remaining $4$ trigonometric functions will be : $\sin \theta = \frac{y}{r} = -\frac{9}{41}$ $\cos \theta = \frac{x}{r} = \frac{40}{41}$ $\tan \theta = \frac{y}{x} = -\frac{9}{40}$ $\cot \theta = \frac{x}{y} = -\frac{40}{9} $
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