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What is a unit circle

User Userden
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I hope this helps you!!

Explanation:

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.

What is a unit circle-example-1
User Zkolnik
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