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The unit circle is a circle with a radius of one unit, typically centered at the origin \((0, 0)\) of a Cartesian coordinate system. It is a fundamental concept in trigonometry and mathematics, used to define the sine, cosine, and tangent functions for all real numbers.

Ancestors (6)

  1. Analytic geometry
  2. Fields of geometry
  3. Geometry
  4. Fields of mathematics
  5. Mathematics
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