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waaachen
Author:
陳兪宏
梯形求面積form ptt家教版
GeoGebra
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兩組對邊相等和有直角的四邊形
【案例】2018年全国1卷理科12题
第八周作业
拼砌四邊形
【案例】2013年安徽高考15题
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雙曲線
前景背景
堆疊正立方體
数学
x^3+y^3-3xy
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Optimization Problems
Sequences and Series
Natural Numbers
Cylinder
Prism