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任意角的三角比
Author:
Kooky Leung
GeoGebra
New Resources
折扣
常见四边形是否是双心四边形
撒针估算面积实验
盈利與虧蝕
第八周作业2
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二項分布與抽樣 (iPad 適用)
task 8
圓周 (圖形H) 的複本
旋轉方形
阿波羅尼斯圓 的複本
Discover Topics
Hyperbola
General Quadrilateral
Trigonometry
LCM and GCD
Linear Programming or Linear Optimization