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dhc987
GeoGebra
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美國國旗 (Codex 版)
國旗 (Claude 版)
幾何作圖題：切三圓（題目）
三半圓間的相切圓(Codex╱2026.10.07)
美國國旗 (Codex, 2026.10.06)
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Slope of perpendicular lines
Copy of 球面
分數化百分數(以方程計算，增潤項目)
走进图形世界
翰林數學_2下_CH3-2_RHS證明
Discover Topics
Special Points
Inequalities
Logarithmic Functions
Circle
Vectors 3D (Three-Dimensional)