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cpcoolestkid4
23.06.2019 •
Mathematics
Express cos(27pi/8) as a trigonometric function of an angle in quadrant i.
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Ответ:
The equivalent trigonometric ratio in Quadrant I is![-\cos (\frac{3\pi}{8})](/tpl/images/0008/5013/cde99.png)
Step-by-step explanation:
The terminal side of
is in the 3rd quadrant.
The principal angle is![\frac{3\pi}{8}](/tpl/images/0008/5013/6b0ec.png)
In other words, the terminal side of
makes an acute angle of
radian with the positive x-axis. Acute angles are in the first quadrant.
Since the cosine ratio is negative in the 3rd quadrant,
Ответ:
what the anser
Step-by-step explanation: