Answer
$tan~u$
Work Step by Step
$tan~u=\frac{sin~u}{cos~u}$
$cot~u=\frac{cos~u}{sin~u}$
$\frac{1}{cot~u}=\frac{1}{\frac{cos~u}{sin~u}}=1·\frac{sin~u}{cos~u}=tan~u$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 7 - 7.2 - Verifying Trigonometric Identities - 7.2 Exercises - Page 520: 3
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