The Unit Circle

unit circle  The unit circle can be used to calculate the trigonometric functions sin The unit circle has a radius of one The intersection of the x and y-axes Exercise 1 · Make a unit circle through two points A= and B= · Enter a point C on the circle and mark the angle ∠BAC · Make sure that radians is

In trigonometry, the unit circle has a radius of 1 and is centered at the origin It's useful for learning ratios like sine and cosine It also illustrates the Illustration of a unit circle superimposed on the coordinate plane with the x- and y-axes indicated

Points of Unit circle ADVERTISEMENT The points of the unit circle make mathematics easy for us For example, in a unit circle for any angle θ, the trig-values The equation for the unit circle is x2+y2=1 So if we know one of the two coordinates of a point on the unit circle, we can substitute that