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1977福建卷文2（6）
Author:
常振虎
GeoGebra
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Nested spiral octagon
算柱 (兩位數)
幾何作圖題：切三圓（題目）
中華民國國旗 (Codex╱2026.10.06)
Claude 解幾何題
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Sierpinski Carpet
國旗
椭圆的定义
展開圓面積 (講義版)的副本
力的拆解
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Probability
Arithmetic Operations
Pythagoras or Pythagorean Theorem
Limits
Optimization Problems