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版选修2_1201901155108.ppt

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第2章 圆锥曲线与方程,2.2 椭 圆 2.2.1 椭圆的标准方程,(0，c)，(0，c),椭圆标准方程的求法,椭圆标准方程的识别,焦点三角形问题,谢谢观看,

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