find the exact value of $\\cos \\frac{\\pi}{3}$. $\\cos \\frac{\\pi}{3}=\\square$

Explanation:

Step1: Convert radians to degrees

We know that $\pi$ radians $ = 180^{\circ}$. So, $\frac{\pi}{3}$ radians $=\frac{180^{\circ}}{3}=60^{\circ}$.

Step2: Recall the cosine value of a special - angle

We know from the unit - circle or trigonometric values of special angles that $\cos60^{\circ}=\frac{1}{2}$.

Answer:

$\frac{1}{2}$