Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 1 - Trigonometric Functions - Section 1.3 Trigonometric Functions - 1.3 Exercises: 71


$csc 1800^{\circ}= undefined$

Work Step by Step

1. What we know about 1800 degree angle $\theta=0^{\circ}$ (because it is a co-terminal angle and values of x and y will be the same) $x=1$ $y=0$ $r=1$ 2. Substitute in: $\csc\theta=\frac{r}{y}=\frac{1}{0}=undefined$
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