Answer
$\boxed{1}$
Work Step by Step
$\tan(-3\pi/4) = \dfrac{\sec(-3\pi/4)}{\csc(-3\pi/4)}= \dfrac{-\frac{\sqrt{2}}{2}}{-\frac{\sqrt{2}}{2}} = 1$. This can be easily verified by a calculator.
Calculus: Early Transcendentals (2nd Edition)
by Briggs, Bill L.; Cochran, Lyle; Gillett, Bernard
Published by
Pearson
ISBN 10:
0321947347
ISBN 13:
978-0-32194-734-5
Chapter 1 - Functions - 1.4 Trigonometric Functions and Their Inverse - 1.4 Exercises - Page 48: 17
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