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七巧板
Author:
Tse Sir
GeoGebra
New Resources
GeoGebra笔记功能体验课件
柱體建築師
異分母分數減法
錐體建築師
兩位數除以一位數（二）
Discover Resources
ray tracing 2 lens
二項分布與抽樣 (iPad 適用)
max{f(x),g(x)} 與 min{f(x),g(x)}
指對數函數交點分析
銳角三角：tan
Discover Topics
Triangles
Tangent Function
Ellipse
Arithmetic Mean
Random Variables