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Match the x-coordinates with their corresponding pairs of y-coordinates on the unit circle.

User JuCachalot
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In mathematics, a unit circle is a circle of unit radius—that is, a radius of 1. Frequently, especially in trigonometry, the unit circle is the circle of radius 1 centered at the origin (0, 0) in the Cartesian coordinate system in the Euclidean plane.

User Tetotechy
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