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學習活動四平行線法的原理
Author:
CIY
GeoGebra
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【案例】2018年全国1卷理科12题
拼砌四邊形
兩組對邊相等和有直角的四邊形
異分母分數減法
【案例】2013年安徽高考15题
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Mobius 變換 (2)
Projection of vector in R2
向量求和动画演示
固定三角形的條件−題1
初中数学模型
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Logic
Similarity Transformation or Similarity
Surface
Fractions
Cylinder