Law of Cosines
2015-09-15 04:01
This applet demonstrates the Law of Cosines in a triangle. By constructing triangle ABC with its sides a, b, c and corresponding angles α and β, it visually illustrates the mathematical relationship between the square of a side and the cosine of its included angle. Using GeoGebra's geometric construction tools, users can observe the dynamic changes of points, segments, and angles, gaining a deeper
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三角函數
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