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Unit Circle and Trigonometric Functions by Neil

Unit Circle and Trigonometric Functions by Neil
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2015-12-04 04:32
CircleAngleFunctionTrigonometryCoordinate Geometry
This example demonstrates the graphs and properties of trigonometric functions using the unit circle in degree mode. Key math concepts include the unit circle, trigonometric functions, angle measurement, and coordinate geometry. It is constructed using GeoGebra commands such as Intersect, Circle, Rotate, Polygon, Angle, and Segment. Suitable for high school students and learners needing to understand the relationship between trigonometric functions and the unit circle.

GeoGebra Commands & Parameters

  1. Intersect(xAxis, yAxis) → A
  2. Circle(A, B) → c
  3. Rotate(B, (θ * π / 180), A) → C
  4. Polygon(A, C, D) → poly1, d, a, c_1
  5. Angle(C, D, A) → α
  6. Angle(B, A, C) → β
  7. Segment(A, F) → b
  8. Segment(A, D) → e
  9. Intersect(d, c_1) → K
  10. Angle(C, A, B) → γ
  11. Circle(A, L) → f