## Trigonometry (11th Edition) Clone

Published by Pearson

# Chapter 2 - Acute Angles and Right Triangles - Section 2.1 Trigonometric Functions of Acute Angles - 2.1 Exercises - Page 54: 26

#### Answer

$\tan$ 25.4$^{\circ}$ = $\cot$ 64.6$^{\circ}$

#### Work Step by Step

According to the Cofunction Identities $\tan$ $A$ = $\cot$ (90$^{\circ}$ - $A$) Therefore: $\tan$ 25.4$^{\circ}$ = $\cot$ (90$^{\circ}$ - 25.4$^{\circ}$) = $\csc$ 64.6$^{\circ}$ Therefore: $\tan$ 25.4$^{\circ}$ = $\cot$ 64.6$^{\circ}$

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