What are the sine, cosine, and tangent of the angle $frac{pi}{3}$ on the unit circle?
Answer 1
First, locate the angle $\frac{\pi}{3}$ on the unit circle. This angle corresponds to 60 degrees.
The coordinates of the point on the unit circle at this angle are $\left(\frac{1}{2}, \frac{\sqrt{3}}{2}\right)$.
Thus, the cosine of $\frac{\pi}{3}$ is the x-coordinate, which is $\frac{1}{2}$:
$\cos \frac{\pi}{3} = \frac{1}{2}$
The sine of $\frac{\pi}{3}$ is the y-coordinate, which is $\frac{\sqrt{3}}{2}$:
$\sin \frac{\pi}{3} = \frac{\sqrt{3}}{2}$
The tangent is given by the ratio of the sine to the cosine:
$\tan \frac{\pi}{3} = \frac{\sin \frac{\pi}{3}}{\cos \frac{\pi}{3}} = \frac{\frac{\sqrt{3}}{2}}{\frac{1}{2}} = \sqrt{3}$
Answer 2
To find the sine, cosine, and tangent of $frac{pi}{3}$ on the unit circle, recognize the angle as 60 degrees.
The unit circle coordinates for $frac{pi}{3}$ are $left(frac{1}{2}, frac{sqrt{3}}{2}
ight)$.
The cosine, which is the x coordinate, is:
$cos frac{pi}{3} = frac{1}{2}$
The sine, which is the y coordinate, is:
$sin frac{pi}{3} = frac{sqrt{3}}{2}$
The tangent, the ratio of sine to cosine, is:
$ an frac{pi}{3} = frac{frac{sqrt{3}}{2}}{frac{1}{2}} = sqrt{3}$
Answer 3
For angle $frac{pi}{3}$ (60 degrees) on unit circle:
Cosine: $cos frac{pi}{3} = frac{1}{2}$
Sine: $sin frac{pi}{3} = frac{sqrt{3}}{2}$
Tangent: $ an frac{pi}{3} = sqrt{3}$
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