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zhlsh-2
Author:
张老师
GeoGebra
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Earth with coastline
伊朗國旗 (Codex╱2026.10.07)
幾何作圖題：切三圓（題目）
小数 的副本
Claude 解幾何題
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繪畫三角形的外接圓
a slope triangle
極線對偶定理 / polar duality theorem
Pyramid and Cone1
S3 Ch4.3 例4.6a 三視圖(3D圖)
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Correlation
Geometric Distribution
Congruence
Integral Calculus
Matrices