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Unit Circle and Trigonometric Functions by ABDUL-SAHIB

Unit Circle and Trigonometric Functions by ABDUL-SAHIB
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2012-03-09 22:20
CircleFunctionTrigonometry
This example illustrates the relationship between the unit circle and trigonometric functions. Key mathematical concepts include the unit circle, trigonometric functions, and their geometric meanings. Using commands such as intersection, circle, angle, and orthogonal line, the example demonstrates the definition and properties of trigonometric functions. Suitable for high school mathematics education and learning.

GeoGebra Commands & Parameters

  1. Intersect(xAxis, yAxis) → A
  2. Circle(A, 1.0) → c
  3. Point(c) → DragMe
  4. Segment(A, DragMe) → a
  5. Intersect(c, xAxis, 2.0) → C
  6. Segment(A, C) → b
  7. Angle(C, A, DragMe) → α
  8. Segment(D, A) → SINα
  9. Segment(A, E) → COSα
  10. OrthogonalLine(C, xAxis) → d
  11. Line(A, DragMe) → e
  12. Intersect(e, d) → H
  13. Segment(C, H) → f
  14. Intersect(c, yAxis, 1.0) → I
  15. OrthogonalLine(I, yAxis) → g
  16. Intersect(g, e) → J
  17. Segment(I, J) → h