Answer
$\cot 64.6^{\circ}$
Work Step by Step
$\tan 25.4^{\circ}=\cot(90^{\circ}-25.4^{\circ})$
$=\cot 64.6^{\circ}$
Precalculus (6th Edition)
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
013421742X
ISBN 13:
978-0-13421-742-0
Chapter 5 - Trigonometric Functions - 5.3 Trigonometric Functions Values and Angle Measures - 5.3 Exercises - Page 532: 28
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