Trigonometry (10th Edition)

Published by Pearson
ISBN 10: 0321671775
ISBN 13: 978-0-32167-177-6

Chapter 4 - Graphs of the Circular Functions - Section 4.3 Graphs of the Tangent and Cotangent Functions - 4.3 Exercises - Page 168: 47a

Answer

$d=0$ m

Work Step by Step

We substitute $t=0$ in the equation and then solve for $d$: $d=4\tan 2\pi t$ $d=4\tan 2\pi (0)$ $d=4\tan 0$ Since $\tan0=0$; $d=4\tan 0$ $d=4(0)$ $d=0$ Therefore, for $t=0$ seconds, $d=0$ m.
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