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# Domain, Range, and Signs of Trigonometric Functions

## x and y values of a function; signs of functions based on quadrants.

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Practice Domain, Range, and Signs of Trigonometric Functions

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Domain and Range of Trig Functions

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*Think back to the unit circle and how the Trig Functions are connected to it, the Domain and Range of Trig Functions are connected with the Unit Circle.*

The domain of a function is the set of 'x' values for which the function is defined.

The range of a function is the set of 'y' values for which the function is defined

How are the x and y values in the Unit Circle linked to Trig Functions? Look here for a refresher