Unit Circle Practice

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What is the unit circle?

Back

A circle with a radius of 1 centered at the origin (0,0) in the coordinate plane, used to define trigonometric functions.

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Back

The ratio of the y-coordinate to the x-coordinate (y/x).

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What can we do if the angle is too large or too small?

Back

Find a coterminal angle by adding or subtracting a full rotation (2π or 360 degrees).

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Back

The x-coordinate of the point on the unit circle.

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