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直线与椭圆
Author:
lidonglin
焦点到直线的距离之积为定值b方则直线与椭圆相切
GeoGebra
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画直线等分三角形的面积
斜率的值
垂直線的斜率
空间中两直线的位置关系
探究三角形的全等條件
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根據百分率找數量(二): 例3
全等三角形
directed number_magnet model
讀磅 2(公斤和克)
圆周上的动点形成椭圆
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Terms
Rational Numbers
Right Triangles
Functions
Surface