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Author:
鄭仁評
GeoGebra
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兩組對邊相等和有直角的四邊形
判斷球體
【案例】2018年全国1卷理科12题
找出對稱軸
sanjiaohanshu
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二次函數的圖形
三次曲线
軌跡 直線 (與兩平行線等距)
錯角---垂直平行綫
六邊形
Discover Topics
Sequences and Series
Logic
Vectors
Multiplication
Tangent Line or Tangent