Answer
$tan~θ~cot~θ=1$
Work Step by Step
Use: $cot~θ=\frac{1}{tan~θ}$
$tan~θ~cot~θ=tan~θ\frac{1}{tan~θ}=1$
Algebra and Trigonometry 10th Edition
by Larson, Ron
Published by
Cengage Learning
ISBN 10:
9781337271172
ISBN 13:
978-1-33727-117-2
Chapter 6 - 6.2 - Right Triangle Trigonometry - 6.2 Exercises - Page 442: 41
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