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兩數相加
Author:
李帆 (Finley)
認識兩線段相加與產生結果的關係 by Finley
GeoGebra
New Resources
平行線的判定
盈利與虧蝕
椭圆内切圆链
龙形曲线-分形龙
撒针估算面积实验
Discover Resources
Binomial Formula
選擇合適的「中間人」
Closure shape
将三角形面积一分为二
面積比化為向量比
Discover Topics
Function Graph
Curve Sketching
Prism
Quadratic Equations
Complex Numbers