Answer
$V = 163~cos(\omega~t-\frac{\pi}{2})$
Work Step by Step
$sin(\theta) = cos(\theta-\frac{\pi}{2})$
We can express $V$ in terms of cosine:
$V = 163~sin(\omega~t)$
$V = 163~cos(\omega~t-\frac{\pi}{2})$
Trigonometry (11th Edition) Clone
by Lial, Margaret L.; Hornsby, John; Schneider, David I.; Daniels, Callie
Published by
Pearson
ISBN 10:
978-0-13-421743-7
ISBN 13:
978-0-13421-743-7
Chapter 5 - Test - Page 250: 15a
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