Answer
$0.1440\ rad$ or $8.2^\circ$
Work Step by Step
With $x=300\ mm$ and using the given formula, we have $\theta=2tan^{-1}\frac{21.634}{300}\approx0.1440\ rad$ or $8.2^\circ$
Precalculus (6th Edition) Blitzer
by Blitzer, Robert F.
Published by
Pearson
ISBN 10:
0-13446-914-3
ISBN 13:
978-0-13446-914-0
Chapter 4 - Section 4.7 - Inverse Trigonometric Functions - Exercise Set - Page 627: 96
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