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版选修2_1201901155126.ppt

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第2章 圆锥曲线与方程,2.6 曲线与方程 2.6.3 曲线的交点,f1(x0，y0)0 ，,f2(x0，y0)0,f1(x，y)0，,f2(x，y)0,f(x1，y1)0，,f(x2，y2)0，,代点法,点差法,曲线公共点的个数问题,直线被圆锥曲线截得的弦长问题,直线与圆锥曲线的综合问题,直线与圆锥曲线的相交弦问题,谢谢观看,

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