Trigonometry 7th Edition

by McKeague, Charles P.; Turner, Mark D.

Published by Cengage Learning

ISBN 10: 1111826854

ISBN 13: 978-1-11182-685-7

Chapter 2 - Section 2.2 - Calculators and Trigonometric Functions of an Acute Angle - 2.2 Problem Set - Page 71: 39

Answer

$\cot 31^{\circ}$ = 1.6643

Work Step by Step

Using calculator in degree mode- $\cot 31^{\circ}$ = 1.6642794824 (Finding $\tan$ first and then using reciprocal $\frac{1}{x}$) Rounding it to four places past the decimal point- $\cot 31^{\circ}$ = 1.6643

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