Reduction Formula 2: Trigonometric Symmetry about the Y-Axis

2020-03-13 13:06
This example demonstrates the geometric relationship of trigonometric reduction formula 2 regarding y-axis symmetry. By constructing angle θ and its symmetric angle π-θ about the y-axis in the coordinate system, it visually illustrates how sine, cosine, and tangent values change under y-axis reflection. Using mirror transformation and dynamic parameters, users can observe the coordinate changes of