Answer
$1.8925\ unit^2$
Work Step by Step
Using the given formula, with $a=-2,b=1$, we have the area:
$A=tan^{-1}(1)-tan^{-1}(-2)\approx0.7854-(-1.1071)=1.8925\ unit^2$
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 628: 98
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