The Unit Circle

unit circle  The Unit Circle is a circle with a radius of 1 and is centered at the coordinate point $$ The unit circle is used to show the trigonometric functions Learn Defining the Unit Circle with free step-by-step video explanations and practice problems by experienced tutors

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 tan 30° = 1√3 To find this answer on the unit circle, we start by finding the sin and cos values as the y-coordinate and x-coordinate, respectively: sin 30°

Sine, Cosine and Tangent in a Circle or on a Graph Sine, Cosine and Tangent are each a ratio of sides of a See description below In mathematics, a unit circle is a circle with a radius of one In trigonometry, the unit circle is the circle of