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椭圆的准线是否有复杂的特殊性质
更新时间: 2020-07-03 00:00:00  

椭圆的准线复杂的特殊性质:

一点到定点的距离与到定直线的距离之比为定值,定点不在定直线上,这点的轨迹为一椭圆。定直线即为椭圆准线。定点为焦点。定值为离心率。圆锥曲线的统一定义包含了椭圆的第二定义。如果坐标系选取不特殊,则其方程形式可能不同。

关键词: 椭圆 准线 是否 复杂 特殊 性质

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