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題4
Author:
Anthony OR 柯志明
Topic:
Congruence
,
Triangles
GeoGebra
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四邊形的特性
找出對稱軸
兩組對邊相等和有直角的四邊形
兩位數加法
【案例】2013年安徽高考15题
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內心
為甚麼二次函數中，a是正數，開口向上?
四邊形 (2001 舊課程教師版)
二次函數「一般式」平移(進階)
椭圆与圆的关系的副本
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Correlation
Hypothesis Testing
Confidence Interval
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