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正弦曲线sin(x)
Author:
myao1999
GeoGebra
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兩位數加法
算柱 (兩位數)
兩組對邊相等和有直角的四邊形
拼砌四邊形
找出對稱軸
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滑桿動態指令(動畫根本指令)
Pentacle
外心
拋物線3--平行四邊形法
七下数学案例教程2-对顶角和邻补角例题
Discover Topics
Conic Sections
Similar Triangles
Functions
Dilation
Area