## Algebra and Trigonometry 10th Edition

Published by Cengage Learning

# Chapter 6 - 6.3 - Trigonometric Functions of Any Angle - 6.3 Exercises - Page 454: 40

#### Answer

cot($\frac{\pi}{2}$) = 0

#### Work Step by Step

Using the unit circle, cot($\frac{\pi}{2}$) = 0

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