Precalculus: Concepts Through Functions, A Unit Circle Approach to Trigonometry (3rd Edition)

Published by Pearson
ISBN 10: 0-32193-104-1
ISBN 13: 978-0-32193-104-7

Chapter 5 - Trigonometric Functions - Section 5.3 Properties of the Trigonometric Functions - 5.3 Assess Your Understanding - Page 417: 15



Work Step by Step

$\csc{(\theta+ 360^{\circ} k)} = \csc{\theta}$ $\therefore \csc{450^{\circ}} = \csc{(90^{\circ}+360^{\circ})} = \csc{90^{\circ}}$ $\csc{90^{\circ}} = \dfrac{1}{\sin{90^{\circ}}}=\dfrac{1}{1}=\boxed{1}$
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