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: 105

Answer

Sine and cosecant are positive. All others are negative.

Work Step by Step

$855^{\circ}-2\cdot 360^{\circ}=135^{\circ}$ $135^{\circ}$ is coterminal to $855^{\circ}$ and is in the second quadrant. In quadrant II, sine and cosecant are positive. All others are negative.
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