The Unit Circle - Trigonometry

unit circle  Unit Circle The Unit Circle is a circle centered at the origin with radius equal to 1 It can be used to evaluate trigonometric functions Think of a number Trigonometry » Unit circle · You can draw a point P on the unit circle The angle of line OP with the horizontal axis, is called α · When α has to be

In trigonometry, the unit circle is a circle with of radius 1 that is centered at the origin of the Cartesian coordinate plane The unit circle helps us Going from Quadrant I to Quadrant IV, counter clockwise, the Coordinate points on the axis of the Unit Circle are:

Unit Circle : Example Question #1 What point corresponds to the angle displaystyle -pi on the unit circle? Explanation: The unit circle is the circle of The unit circle is used as a way to help you evaluate the sin and cos at frequently used angles It accounts for both degree and radian measure