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waaachen
Author:
陳兪宏
與雙曲線相切圓半徑證明
GeoGebra
New Resources
兩位數除以一位數(二)
畫出對稱圖形
判斷球體
【案例】2018年全国1卷理科12题
兩位數加法
Discover Resources
test file
宬風老師的GGB教師研習教材
Locus: Equidistance From Two Parallel Lines
三垂線定理
四色地图
Discover Topics
Piecewise Functions
Reflection
Expected Value
Division
Equilateral Triangles