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優良作品2(薇如)
Author:
Ching-Hui Chou
GeoGebra
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三半圓間的相切圓(Codex╱2026.10.07)
幾何作圖題：切三圓（題目）
美國國旗 (Codex, 2026.10.06)
sanjiaohanshu
中華民國國旗 (Codex╱2026.10.06)
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special
線性組合3：正方形
Apollonius Problem 4 LLP Homo 12
費爾巴哈(Feuerbach)定理
平行線法
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Straight Lines
Derivative
Arithmetic
Quadratic Equations
Planes