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  1. Unit Circle - Math is Fun

    Play with the interactive Unit Circle below. See how different angles (in radians or degrees) affect sine, cosine and tangent: Can you find an angle where sine and cosine are equal? The "sides" can be …

  2. Unit circle - Wikipedia

    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.

  3. What is Unit Circle? Definition, Chart, Equation, Examples, Facts

    The unit circle is a circle with a radius of one unit. Learn the definition, equation of unit circle, applications in trigonometry along with examples and more.

  4. Unit Circle: Definition, Formula, Diagram and Solved Examples

    Jul 23, 2025 · Let's understand more about Unit Circle, Formula and Solved examples in detail below. What is Unit Circle? Unit Circle is a circle that has a radius of One (1) unit. We use the cartesian …

  5. Unit Circle – Trigonometry Practice & Reference Guide

    The unit circle is a foundational tool in trigonometry used to understand angles, radians, and the values of sine, cosine, and tangent. On this page, you’ll find clear notes, diagrams, and step-by-step …

  6. Unit Circle (in Degrees & Radians) – Definition, Equation, Chart

    Apr 25, 2024 · What is a unit circle in trigonometry explained with its equation, chart, table, & labeled diagram – learn how to graph it with solved examples

  7. Unit Circle - Equation of a Unit Circle | Unit Circle Chart

    Learn the equation of a unit circle, and know how to use the unit circle to find the values of various trigonometric ratios such as sine, cosine, tangent. Also check out the examples, FAQs.