Trigonometry (11th Edition) Clone

Published by Pearson
ISBN 10: 978-0-13-421743-7
ISBN 13: 978-0-13421-743-7

Chapter 3 - Quiz (Sections 3.1-3.3) - Page 126: 9



Work Step by Step

RECALL: In a unit circle, $\tan{s} = \frac{y}{x}$ (Refer to Figure 13 on page 111) The terminal side of the angle $3\pi$ intersects intersects the unit circle at the point $(-1,0)$. This point has $x=-1$ and $y=0$. Since $\tan{s}=\frac{y}{x}$, then $\tan{3\pi} =\frac{0}{-1}=0$
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