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椭圆画法1--参数方程法
Author:
冯伟冀
GeoGebra
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【案例】2013年安徽高考15题
兩位數除以一位數（一）
異分母分數減法
拼砌四邊形
兩組對邊相等和有直角的四邊形
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平行線
Is this a prism 2
線性變換對相關係數的影響
Addition and Subtraction of Directed Numbers (2)
兩位數除以一位數（一）
Discover Topics
Curve Sketching
Geometric Mean
Similarity Transformation or Similarity
Subtraction
Difference and Slope