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Pythagorean Fractal Tree
Author:
魏向东
GeoGebra
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第八周作业3
科赫雪花
盈利與虧蝕
平行線的判定
比較五件物件的重量
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垂足三角形
阿波羅尼斯問題：與三圓相切的圓
三角形與邊上一點求正三角形
P6 圓周03B
S0G5平均不等式（无字证明）
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Equations
Cube
Linear Programming or Linear Optimization
Linear Equations
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