Identify the Quadrant of an Angle in Radians

Home Identify the Quadrant of an Angle in Radians Answer 1 Isabella Walker Given an angle of $ frac{4pi}{3} $ radians, determine the quadrant in which the terminal side of the angle lies. First, recall that the unit circle is divided into four quadrants: 1. Quadrant...

Find the Cosine of an Angle on the Unit Circle

Home Find the Cosine of an Angle on the Unit Circle Answer 1 John Anderson To find the cosine of an angle, we use the unit circle. Given that the angle is $theta = frac{pi}{3}$, we need to find $cos(frac{pi}{3})$. On the unit circle, the coordinates of the point...