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Author:
tan90
GeoGebra
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兩位數加法
【案例】2018年全国1卷理科12题
找出對稱軸
兩組對邊相等和有直角的四邊形
四邊形的特性
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反餘弦函數
test
proof 49 黃彥淇
立體圖形 錐體
拋物線代數性質,光學性質
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Variance
Cuboid
Arithmetic
Set Theory
Geometric Transformations