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Author:
junfeilx
GeoGebra
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圓的切線方程
常见四边形是否是双心四边形
比較五件物件的重量
百分數及其應用
龙形曲线-分形龙
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圓圓求切圓
特殊線.ggb
DSE Circle-ACT01C Distance between Chords and Centre of a Circle
正方体展开图的副本
拋物線3--平行四邊形法
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Cosine
Conditional Probability
Secant Line or Secant
Exponential Functions
Hypothesis Testing