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教学素材：椭圆离心率
Author:
清风拂琴，陌上花开
GeoGebra
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Claude 解幾何題
長方體平面投影 (Codex版)
兩組對邊相等和有直角的四邊形
算柱 (兩位數)
判斷球體
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Linear Inequalities in Two Unknowns 二元一次不等式
對數函數的內插法
圓內接四邊形
用平方差公式做因式分解
計算圖形周界（小六下）
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Volume
Natural Numbers
Exponential Functions
Triangles
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