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S4E13方圆镜面错觉
Author:
宋晓燕
GeoGebra
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幾何作圖題:切三圓(題目)
國旗 (作圖步驟直接餵給 Claude)
美國國旗 (Codex 版)
三半圓間的相切圓(Codex╱2026.10.07)
四邊形的特性
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圓圓的性質
四邊形四個九點圓共點(九點心)
Copy of 包含除法(1 ÷分數)
两角和的正弦公式
國旗 (Claude 版)
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Line Segment
Incircle or Inscribed Circle
Differential Calculus
Mathematics
Calculus