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二次函数1
Author:
陈铁成
GeoGebra
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【案例】2018年全国1卷理科12题
第八周作业
多邊形的面積
兩位數加法
祖冲之的期望：内棋与外棋
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三角形的邊長關係
托勒密定理的應用
指考數甲105 非選一
Choose the most suitable 'improvised units'(中間人)
旋轉圓弧
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Circumcircle or Circumscribed Circle
Logarithmic Functions
Statistics
Similar Triangles
Rhombus