Trigonometry 7th Edition

Published by Cengage Learning
ISBN 10: 1111826854
ISBN 13: 978-1-11182-685-7

Chapter 2 - Section 2.1 - Definition II: Right Triangle Trigonometry - 2.1 Problem Set: 58

Answer

$ \sqrt 3$

Work Step by Step

To find out exact value of $ \cot 30^{\circ}$, considering special triangle- $ 30^{\circ} - 60^{\circ} - 90^{\circ}$ $\cot 30^{\circ}$ = $\frac{side - adjacent - 30^{\circ}}{side - opposite - 30^{\circ}}$ $\cot 30^{\circ}$ = $ \frac{\sqrt 3}{1}$ =$ \sqrt 3$
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