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三角函數的疊合
Author:
李春培
三角函數的疊合
GeoGebra
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【案例】2013年安徽高考15题
拼砌四邊形
找出對稱軸
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
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task5
正四面體的反射對稱
Primary School Mathematics Collection
ggxfs 凹面鏡的反射成像
數線_小數的認識
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Hyperbola
Division
Difference and Slope
Linear Equations
Similar Triangles