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 5.2 Trigonometric Functions: Unit Circle Approach - 5.2 Assess Your Understanding - Page 403: 71


$\cot{(\frac{\pi}{12})} \approx 3.73$

Work Step by Step

RECALL: $\cot{x} = \dfrac{1}{\tan{x}}$ Use a scientific calculator in radian mode. Round-off answer to two decimal places to obtain: $\cot{(\frac{\pi}{12})} =\dfrac{1}{\tan{(\frac{\pi}{12})}}\approx 3.73$
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