名校
解题方法
1 . 已知
、
分别为椭圆
的左顶点和下顶点,
为直线
上的动点,
的最小值为
.
(1)求
的方程;
(2)设
与
的另一交点为
,
与
的另一交点为
,问:是否存在点
,使得四边形
为梯形,若存在,求
点坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60906fb8f76022953cdae6ac61104737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6983a471f24a61ef9ba49b814bf994c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91d412edc3f06d0af14ec576fba2ca80.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2021-04-16更新
|
1143次组卷
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5卷引用:河北省唐山市2021届高三下学期第二次模拟数学试题
河北省唐山市2021届高三下学期第二次模拟数学试题江苏省盐城中学2021届高三下学期第一次模拟考试数学试题宁夏石嘴山市第三中学2021届高三四模数学(文)试题宁夏石嘴山市第三中学2021届高三下学期第四次模拟考试数学(文)试题(已下线)专题2.8 圆锥曲线-椭圆-2021年高考数学解答题挑战满分专项训练(新高考地区专用)
名校
2 . 已知椭圆
,
为椭圆的左、右焦点,点
在直线
上且不在
轴上,直线
与椭圆的交点分别为
和
,
为坐标原点.
设直线
的斜率为
,证明:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd3beb1b9d8552f8a3d18b8d3318459.png)
问直线
上是否存在点
,使得直线
的斜率
满足
?若存在,求出所有满足条件的点
的坐标;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533b93dd6eb6b474481247736699c76c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3070c679fb57d37e2224c5205fd3812.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25d82387e48eafb286785a21a8d4150f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25d82387e48eafb286785a21a8d4150f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd3beb1b9d8552f8a3d18b8d3318459.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bca32ffa13c674d0cd1f8db232f216b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc22602227e37a4305d48e619523e19b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6dba93e718deb57f1e6e8122a2bcbb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2019-04-08更新
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2卷引用:【全国百强校】河北省唐山市第一中学2019届高三下学期冲刺(一)数学(理)试题