Answer
$\approx1.25$
Work Step by Step
Use a calculator in RAD mode and round the result to two decimal places:
$\tan^{-1}(3)\approx1.25$
Precalculus (10th Edition)
by Sullivan, Michael
Published by
Pearson
ISBN 10:
0-32197-907-9
ISBN 13:
978-0-32197-907-0
Chapter 7 - Analytic Trigonometry - Chapter Review - Chapter Test - Page 507: 9
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