解题方法
1 . 已知椭圆
的离心率为
,
为左顶点,点
在椭圆
上,其中
在第一象限,
与右焦点的连线与
轴垂直,且
,则直线
的方程为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58a0b452fd57bbdc105589e871baa009.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632cb0c39ceb099009ea05d4aae0f6f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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14-15高二上·江苏扬州·期末
2 . 如图平面直角坐标系
中,椭圆
的离心率
,
分别是椭圆的左、右两个顶点,圆
的半径为
,过点
作圆
的切线,切点为
,在
轴的上方交椭圆于点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03dc9b47d479265a0ad2b4b85e2ed1a2.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de85df85401e7e8da683ea4a784963c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03dc9b47d479265a0ad2b4b85e2ed1a2.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/12/cc6085c8-f689-4704-8d49-c8f99ce792d7.png?resizew=250)
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14-15高二上·北京东城·期末
名校
3 . 过椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
的左顶点A的斜率为
的直线交椭圆
于另一点
,且点
与右焦点
的连线垂直于
轴,若
,则椭圆的离心率
的取值范围是____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9610b9296750c15a274f9636b6cf078e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
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名校
4 . 已知椭圆
:
的短轴长为2,离心率为
,设过右焦点的直线
与椭圆
交于不同的两点A,B,过A,B作直线
的垂线AP,BQ,垂足分别为P,Q.记
, 若直线l的斜率
≥
,则
的取值范围为___ .
![](https://img.xkw.com/dksih/QBM/2017/4/12/1664152670633984/1720698758316032/STEM/47b70950d14048068e5031318bfb5f33.png?resizew=16)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://img.xkw.com/dksih/QBM/2017/4/12/1664152670633984/1720698758316032/STEM/7fb373a2788341788272c8a243299330.png?resizew=9)
![](https://img.xkw.com/dksih/QBM/2017/4/12/1664152670633984/1720698758316032/STEM/47b70950d14048068e5031318bfb5f33.png?resizew=16)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdf8bcce87af6042008e487b6505b6ef.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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名校
5 . 已知椭圆C:
的左右焦点分别为
,
,点P在椭圆C上,线段
与圆:
相切于点Q,若Q是线段
的中点,e为C的离心率,则
的最小值是______________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef74c4299221a967507c6a179337581a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0739793f234f8e86adc6177801ae7295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8585676a37a64ce866ccf7723ccd0a8d.png)
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2017-04-12更新
|
3175次组卷
|
6卷引用:江苏省扬州中学2017-2018学年高二上学期10月质量检测数学试题
解题方法
6 . 已知椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
的右焦点为
,离心率为
.设A,B为椭圆上关于原点对称的两点,
的中点为M,
的中点为N,原点
在以线段
为直径的圆上.设直线AB的斜率为k,若
,则
的取值范围为_________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/434249d6640b0c1a712d215cf8b83d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdce3ea2321466c556731e52f13c62af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cabea664e61863b3b3279dbce607924e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbad65b3d744b70da2480eee1cdb587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be04106306e2cc6d58a9e76ec32d8cff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://img.xkw.com/dksih/QBM/2015/8/7/1572207888957440/1572207894904832/STEM/b25f5683-9f1f-4e34-81b7-4c66e5947328.png?resizew=291)
您最近一年使用:0次
2016-12-03更新
|
1512次组卷
|
3卷引用:2014-2015学年江苏省扬州市高二上学期期末考试数学试卷
2013·江西南昌·二模
名校
解题方法
7 . 已知椭圆
上一点
关于原点
的对称点为
为其右焦点,若
设
且
则椭圆离心率的取值范围是 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6640bb4ae84c81b1cce121cf072ea00f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d73bb4a2a131df99be3991c7da7a678a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0e1d9f899992d28b032ae5bdce6785d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b87ffa16c537dea4404394080fb66a1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/29/01fbb26c-23ef-4e96-b491-88e3309dc629.png?resizew=163)
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2016-12-02更新
|
4864次组卷
|
14卷引用:【全国百强校】江苏省南通市第一中学2018-2019学年高二第一学期期中考试数学试题
【全国百强校】江苏省南通市第一中学2018-2019学年高二第一学期期中考试数学试题2015-2016学年天津市静海一中等六校高二上学期期末理科数学卷【全国百强校】浙江省余姚中学2018-2019学年高二上学期期中考试数学试题黑龙江省大庆市第四中学2019-2020学年高二上学期第三次月考数学(理)试题安徽省安庆市潜山第二中学2020-2021学年高二上学期第二次月考数学(理)试题黑龙江省哈尔滨市宾县第二中学2022-2023学年高二上学期期中考试数学试题黑龙江省哈尔滨市第三中学校2023-2024学年高二上学期10月月考数学试题福建省福州第三中学2023-2024学年高二上学期11月期中数学试题(已下线)专题3-1 椭圆离心率10种题型归类(讲+练)-【巅峰课堂】2023-2024学年高二数学热点题型归纳与培优练(人教A版2019选择性必修第一册)四川省成都市玉林中学2023-2024学年高二上学期期末模拟数学试题(二)(已下线)2013届江西南昌10所省重点中学高三第二次模拟冲刺理科数学试卷(七)(已下线)2014届福建福州一中高三上学期期末考试理科数学试卷(已下线)6.2 圆锥曲线的综合应用(范围 定点 定值 最值问题)[文] -《备战2020年高考精选考点专项突破题集》专题6.2 圆锥曲线的综合应用(范围 定点 定值 最值问题)[理]-《备战2020年高考精选考点专项突破题集》
2012·江苏泰州·一模
名校
解题方法
8 . 椭圆
的右焦点为
,过原点
的直线交椭圆于点
,且
垂直于
轴,直线
交椭圆于点
,
,则该椭圆的离心率![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ce2b47812fce4b17fd813d0e4cce21.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ff571c72c041d8668b4d2754679f64d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aa2b5e09f8ec785c59900a529390a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d7b385ef88124ebe11e79d5f7eb9edf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ce2b47812fce4b17fd813d0e4cce21.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/6/14/27d565e0-ac17-4ea1-96eb-64cc4ecbd547.png?resizew=155)
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