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蝴蝶定理推廣證明2(交比)
Author:
連琨銘
GeoGebra
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【案例】2013年安徽高考15题
異分母分數減法
找出對稱軸
三位數除以一位數（一）
兩組對邊相等的四邊形
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數學4其他圖
圖形縮放展示
Reflection 反射變換
用GeoGebra試算表模擬牛牛頓法x3
三角測量02
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Cone
Orthocenter
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