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High School
Functions
Domain
Trigonometric Functions
Cluster
Extend the domain of trigonometric functions using the unit circle.
Standard
Explain how the unit circle in the coordinate plane enables the extension of trigonometric functions to all real numbers, interpreted as radian measures of angles traversed counterclockwise around the unit circle.
F-TF.A.2. Explain how the unit circle in the coordinate plane enables the extension of trigonometric functions to all real numbers, interpreted as radian measures of angles traversed counterclockwise around the unit circle.
Properties of Trigonometric Functions
Trig Functions and the Unit Circle
Trigonometric functions for arbitrary angles (radians)
Trigonometric Identities and Rigid Motions