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n-m9bch1-1-2d 二次函數及其圖形-02
Author:
均一
GeoGebra
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長方體平面投影 (Codex版)
算柱 (兩位數)
畫出對稱圖形
美國國旗 (Codex, 2026.10.06)
幾何作圖題：切三圓（題目）
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Erdos-Mordell 不等式
廣義角的代換(180度加減角度)
Hyperbola_Horizontal
數線_小數的認識
拋物線2--焦點法
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Mode
Rotation
Tangent Line or Tangent
Variance
Difference and Slope