试题与答案

已知椭圆的右焦点F与抛物线y2=4x的焦点重合,短轴长为2.椭圆的右准线l与x轴

题型:解答题

题目:

已知椭圆的右焦点F与抛物线y2=4x的焦点重合,短轴长为2.椭圆的右准线l与x轴交于E,过右焦点F的直线与椭圆相交于A、B两点,点C在右准线l上,BCx轴.

(1)求椭圆的标准方程,并指出其离心率;

(2)求证:线段EF被直线AC平分.

答案:

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小题7:Only a m__________ of students are against this plan while most of them support it.

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