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集合運算
Author:
羅驥韡 (Pegasus Roe)
GeoGebra
New Resources
兩組對邊相等和有直角的四邊形
三位數除以一位數（一）
找出對稱軸
兩位數除以一位數（一）
兩位數加法
Discover Resources
乘法公式2
正弦曲线sin(x)
大小相同串珠
学用数学 S0
cube(方块堆叠)
Discover Topics
Continuity
Fractal Geometry
Hyperbola
Arithmetic Operations
Sine