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絕對值距離和
Author:
陳兪宏
GeoGebra
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兩組對邊相等和有直角的四邊形
異分母分數減法
算柱 (兩位數)
找出對稱軸
拼砌四邊形
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方向餘弦
擴分、約分及比較大小
平面幾何的思考
test
最新的解一元二次方程式方法
Discover Topics
Intersection
Hypergeometric Distribution
Polygons
Quadrilaterals
Mode