Precalculus (6th Edition)

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

Chapter 5 - Trigonometric Functions - 5.2 Trigonometric Functions - 5.2 Exercises - Page 519: 99

Answer

Tangent and cotangent are positive. Sine, cosine, secant, and cosecant are negative.

Work Step by Step

A $218^{\circ}$ angle is in quadrant III, so the tangent and cotangent are positive while the sine, cosecant, cosine, and secant are negative.
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