Use the figure of the first quadrant of the unit circle to find the exact circular function value.
$\cos \frac{π}{3}$

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Final Answer: $\cos \frac{π}{3} = \frac{1}{2}$

Steps

Step 1 ：Use the figure of the first quadrant of the unit circle to find the exact circular function value. $\cos \frac{π}{3}$

Step 2 ：The cosine function gives the x-coordinate of the point on the unit circle that is an angle of θ radians counterclockwise from the positive x-axis.

Step 3 ：The angle $\frac{π}{3}$ radians is equivalent to 60 degrees.

Step 4 ：From the unit circle, we know that the x-coordinate of the point at 60 degrees is 1/2. Therefore, $\cos (\frac{π}{3}) = \frac{1}{2}$ .

Step 5 ：Final Answer: $\cos \frac{π}{3} = \frac{1}{2}$

Use the figure of the first quadrant of the unit circle to find the exact circular function value.cos⁡π3

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Use the figure of the first quadrant of the unit circle to find the exact circular function value.
$\cos \frac{π}{3}$