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20200417平面直角坐标系复习T14（3）
Author:
陈敦莹
GeoGebra
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sanjiaohanshu
國旗 (作圖步驟直接餵給 Claude)
Earth with coastline
三半圓間的相切圓(Codex╱2026.10.07)
小数 的副本
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proof ASA
標準差：測驗
Dividing in a Ratio 按比分物
Normal dist. (常態分布互動ggb)
拋物線與弦相交的弓形區域
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Translation
Tangent Function
Geometric Distribution
Calculus
Sphere