Determine the position of -π/2 on a unit circle

Home Determine the position of $ -frac{pi}{2} $ on a unit circle Answer 1 Chloe Evans To find the position of $ -frac{pi}{2} $ on a unit circle, we start by understanding that the unit circle is a circle with radius 1 centered at the origin (0,0). The angle $...

Find the sine and cosine of π/4

Home Find the sine and cosine of $ frac{pi}{4} $ Answer 1 Amelia Mitchell The unit circle helps us to memorize common angle values. For $ frac{pi}{4} $, the coordinates are the same for both sine and cosine.$ sinleft( frac{pi}{4} right) = frac{sqrt{2}}{2} $$ cosleft(...

Find the equation of the unit circle

Home Find the equation of the unit circle. Answer 1 Sophia Williams The unit circle is defined as the set of all points in the coordinate plane that are exactly one unit away from the origin. The equation of the unit circle can be derived using the Pythagorean...