Geometric Proof of the Tangent Addition Formula
2020-04-10 00:39
This GeoGebra applet demonstrates the geometric proof of the tangent addition formula. Using right triangles, circles, and orthogonal lines, it constructs a figure with angles alpha and beta to derive the formula via segment ratios. This dynamic model helps students understand the geometric essence of trigonometric identities, bridging algebra and geometry for effective trigonometry learning.
In collections
Secondary Vocational Mathematics
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