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橢圓軌跡
Author:
趙緹
GeoGebra
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【案例】2018年全国1卷理科12题
畫出對稱圖形
兩位數加法
兩組對邊相等和有直角的四邊形
第八周作业
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雙曲線
偽國中數學幾何題
gjzbh 矩陣與遞迴關係（3階）
匀变速直线运动位移公式推导
除法Q6
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Circle
Upper and Lower Sum or Riemann Sum
Quadratic Equations
Logarithm
Sine