Precalculus (6th Edition) Blitzer

Published by Pearson
ISBN 10: 0-13446-914-3
ISBN 13: 978-0-13446-914-0

Chapter 4 - Section 4.3 - Right Triangle Trigonometry - Concept and Vocabulary Check - Page 560: 4


$$\sin \theta, \\ \tan \theta, \\ \sec \theta $$

Work Step by Step

Please note that the value of a trigonometric function of $\theta$ is equal to the cofunction of the complement of $\theta$. So we have$$\sin \theta = \cos (90^{\circ} - \theta ), \\ \tan \theta = \cot (90^{\circ} - \theta ), \\ \sec \theta = \csc (90^{\circ} - \theta ).$$
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