Trigonometry (10th Edition)

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

Chapter 6 - Quiz (Sections 6.1-6.3): 10b

Answer

$t = 0.2015~s$

Work Step by Step

We can find the least value of $t$ such that $V = 0.30$: $V = cos~2\pi~t$ $cos~2\pi~t = 0.30$ $2\pi~t = arccos(0.30)$ $2\pi~t = 1.266$ $t = \frac{1.266}{2\pi}$ $t = 0.2015~s$
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