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Author:
lizhi
GeoGebra
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球體建築師
sanjiaohanshu
四邊形的特性
兩組對邊相等和有直角的四邊形
【案例】2018年全国1卷理科12题
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小二均分
西瓦定理 (Ceva's Theorem)
線性規劃
正弦函数自变量的几何显示
我的第一个GGB绘本
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Function Graph
Arithmetic Mean
Linear Programming or Linear Optimization
Median Line
Straight Lines