与椭圆右、下顶点连线平行的直线交椭圆于两点，这两点到原点的距离平方和为何为定值？ 知乎 Sketch Coloring Page

与椭圆右、下顶点连线平行的直线交椭圆于两点，这两点到原点的距离平方和为何为定值？ 知乎 Template

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与椭圆右、下顶点连线平行的直线交椭圆于两点，这两点到原点的距离平方和为何为定值？ 知乎 sketch template

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椭圆尺规作图系列02 怎样作出椭圆的中心、对称轴和顶点？ 知乎 sketch template

椭圆尺规作图系列02 怎样作出椭圆的中心、对称轴和顶点？ 知乎 sketch template

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椭圆上的四点共圆与椭圆幂定理（可推广到双曲线抛物线） 知乎 sketch template

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21． 椭圆有两顶点AB10过其焦点F01的直线l与椭圆交于CD两点并与x轴交于点P．直线AC与直线BD交于点Q． I sketch template

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文已知椭圆的左焦点为右顶点为点在椭圆上且轴 直线交轴于点．若则椭圆的离心率是 A． B． C． D．理已知是椭圆的 sketch template

已知椭圆的上顶点为，直线与椭圆交于，两点，且直线与 高途 sketch template

设椭圆直线l过椭圆左焦点F1且不与x轴重合l与椭圆交于PQ两点当l与x轴垂直时若点且 KF1＝2 1求椭圆T的方程 sketch template

4．如图已知椭圆分别为椭圆的左右焦点A为椭圆的上顶点直线交椭圆于另一点B． Ⅰ若求椭圆的离心率 Ⅱ若椭圆的焦距为2且 sketch template

椭圆的性质（顶点、范围、对称性、离心率）章节学习百度题库 sketch template

7．F1F2是椭圆 ＝1的左右两焦点P为椭圆的一个顶点若 PF1F2是等边三角形则a2＝解析由题意因为 PF1F2是等边 sketch template

如图直线L与椭圆C交于AB两点以OAOB为邻边作平行四边形OAPB 1 求证椭圆C与直线L总有两个交点 2 当时 sketch template

圆锥曲线——定值定点 知乎 sketch template

直线l交椭圆x216 Y212=1于AB两点若AB的中点为M= A2x 3y 1=0B3x 2y 4=0C2x 7=0D3x sketch template

已知椭圆 =1直线ly=x T交椭圆于AB两点 OAB的面积为S的奇偶性为 A．奇函数 B．偶函数 C．不是奇函数也不是偶函数 D sketch template

题目已知椭圆的左焦点为右顶点为1求的方程2过点且与轴不重合的直线与交于两点直线分别与直线交于两点且以为直径的圆过 sketch template

北京市2024届“极光杯”高三上学期线上测试（二）简略解答 知乎 sketch template

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