1 . 已知椭圆
,直线
与椭圆在第四象限交于
,
两点,与
轴、
轴分别交于
,
两点,
是坐标原点,椭圆的左顶点为
,且
,
,则直线
的方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf6dba18751d6641f9fa02f5756be97a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f30acc34f4ee1077532ae6808af2ab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7a86c90e8958eb5dcc7527be17f6a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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解题方法
2 . 设椭圆C:
的离心率为
,且与直线
相切.
(1)求椭圆C的方程;
(2)若在y轴上的截距为2的直线l与椭圆C分别交于A,B两点,O为坐标原点,且直线OA,OB的斜率之和等于12,求直线AB的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de1b0a3c8c0926fa4cdd39171651db33.png)
(1)求椭圆C的方程;
(2)若在y轴上的截距为2的直线l与椭圆C分别交于A,B两点,O为坐标原点,且直线OA,OB的斜率之和等于12,求直线AB的方程.
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3 . 已知
是椭圆
的右焦点,且
在椭圆
上,
垂直于
轴.
(1)求椭圆
的方程.
(2)过点
的直线
交椭圆
于
(异于点
)两点,
为直线
上一点.设直线
的斜率分别为
,若
,证明:点
的横坐标为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/480f004c98a0df86a35a48bc973f0472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a186265d5a00ab226143623b6240c6a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca1726d463bd741c904abd9b6589056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9f2787131057460eae4a5d98b02b699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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2023-03-11更新
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2180次组卷
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13卷引用:云南省曲靖市第一中学2024届高三上学期第四次月考数学试卷
云南省曲靖市第一中学2024届高三上学期第四次月考数学试卷湖南省部分市2023届高三下学期3月大联考数学试题河南省焦作市2022-2023学年高三第二次模拟考试数学(理科)试题贵州省黔东南州2023届高三第一次适应性考试数学(文)试题贵州省黔东南州2023届高三第一次适应性考试数学(理)试题吉林省白山市2023届高三三模联考数学试题陕西省咸阳市高新一中2023届高三下学期第八次质量检测理科数学试题陕西省咸阳市高新一中2023届高三下学期第八次质量检测文科数学试题河南省焦作市2022-2023学年高三第二次模拟考试数学(文科)试题(已下线)专题16解析几何(解答题)(已下线)专题15解析几何(解答题)河北省保定市安国中学等3校2023届高三下学期3月月考数学试题辽宁省锦州市黑山县黑山中学2023届高三一模数学试题
名校
解题方法
4 . 若椭圆
过抛物线
的焦点,且与双曲线
有相同的焦点.
(1)求椭圆E的方程;
(2)不过原点O的直线
与椭圆E交于A、B两点,求
面积的最大值以及此时直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cb291b5fe77e830ae19671170f72b89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e1fa37c4c826b5dcfebe86ab6177906.png)
(1)求椭圆E的方程;
(2)不过原点O的直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d00a5df9d281dd4e1e45bf6a4d6fb27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12cfce6bedc9e8962a4a8b9afce4d4a9.png)
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2023-02-23更新
|
3195次组卷
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21卷引用:云南省保山市腾冲市第八中学2022-2023学年高二下学期开学考试数学试题
云南省保山市腾冲市第八中学2022-2023学年高二下学期开学考试数学试题江西省抚州市南城第二中学2021-2022年高二上学期第二次月考数学(理)试题广东省江门市2021-2022学年高二下学期期末调研(二)数学试题陕西省咸阳市武功县普集高级中学2022-2023学年高二上学期期末模拟数学试题福建省福州市屏东中学2022-2023学年高二上学期期末质量检测数学试题(已下线)3.2.2 双曲线的几何性质(2)宁夏青铜峡市宁朔中学2022-2023学年高二下学期3月月考数学(理)试题四川省甘孜州康定中学2022-2023学年高二下学期3月月考数学(理)试题四川省甘孜州康定中学2022-2023学年高二下学期3月月考数学(文)试题宁夏石嘴山市平罗中学2023届高三第四次模拟数学(文)试题四川省广安市第二中学校2022-2023学年高二下学期期中考试数学试题(文)山东省淄博实验中学2022-2023学年高二上学期期末数学试题四川省仁寿第二中学2022-2023学年高二下学期5月月考理科数学试题山东省枣庄市第八中学2022-2023学年高二上学期期末数学试题黑龙江省双鸭山市饶河县高级中学2021-2022学年高二上学期期末数学试题(已下线)专题06 期末预测基础卷-2023-2024学年高二数学期末复习重难培优与单元检测(人教A版2019)山西省朔州市怀仁市第一中学校2023-2024学年高二上学期1月期末数学试题陕西省咸阳市三原南郊中学2023届高三第二次模拟考试数学(理科)试题(已下线)特训02 期末解答题汇编(第1-5章,精选38道)-2023-2024学年高二数学《重难点题型·高分突破》(人教A版2019选择性必修第二册)安徽省六安市毛坦厂中学集团校2023-2024学年高二上学期期末考试数学试题广东省清远市连州市连州中学2023-2024学年高二下学期3月月考数学试题
名校
解题方法
5 . 已知椭圆
:
的离心率为
,其左、右焦点分别为
、
,上顶点为
,且
.
(1)求椭圆
的方程;
(2)直线
:
与椭圆
交于
两点,О为坐标原点.试求当
为何值时,
恒为定值,并求此时
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc7a9140bf7ed15de4241aa9ad8924a4.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27bc3a7f511eb588c096c5672d5da49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17a0d9a2f14f7e789892487d6585804a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
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2023-02-22更新
|
1089次组卷
|
5卷引用:云南省昆明市第一中学2022-2023学年高二下学期期中考试数学试题
名校
解题方法
6 . 已知椭圆
的左、右焦点分别为
,且
.过右焦点
的直线
与
交于
两点,
的周长为
.
(1)求椭圆
的标准方程;
(2)过原点
作一条垂直于
的直线
交
于
两点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d4f7e7f33963df24d6a46067b4677e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c07ebcbfacda073208d483c58e8a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/453ea8f3a2b85526b54bf453871c3820.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过原点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a942084062371b94b113271bd1060837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d32c015d565e7a3e0f3f354fbffe9e8.png)
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2023-02-17更新
|
784次组卷
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6卷引用:云南省玉溪第一中学2022-2023学年高二下学期第一次月考数学(文)试题
名校
7 . 已知椭圆
的焦距为2,且经过点
.
(1)求
的方程;
(2)若直线
与
交于
两点,
的中点为
,当
时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23a84757fa1fc2e9bf6134c12dce7fe0.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d7be008afbf741d994ca8c851e98007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-02-15更新
|
647次组卷
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3卷引用:云南师范大学附属中学2022-2023学年高二上学期第二学段模块考试数学试题
解题方法
8 . 在平面直角坐标系
中,已知椭圆
的离心率为
,且过点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/9/9b6f38f4-2ba1-4be3-a568-c0c93f9c5340.png?resizew=222)
(1)求椭圆C的方程;
(2)如图所示,动直线
交椭圆C于A,B两点,交y轴于点M.点N是M关于O的对称点,
的半径为
.设D为
的中点,
与
分别相切于点E,F,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/182c81fb1c5e6d1a57a5f34a31ee69a9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/9/9b6f38f4-2ba1-4be3-a568-c0c93f9c5340.png?resizew=222)
(1)求椭圆C的方程;
(2)如图所示,动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/327a8132cb929667c033a3c20bd9c67c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c22f4b5c09a56bd63d8378365fbdbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de246abb87d25da6150e81d4ce1d0a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c818110255bdad691f61be6461a6fd73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c22f4b5c09a56bd63d8378365fbdbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c962fe4f47732b8e6e83d17ff2b9af13.png)
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9 . 已知椭圆
的右焦点为F,点
在椭圆C上,且
三点共线.
(1)若直线
的倾斜角为
,求
的值;
(2)已知点
,其中
,若直线
不与坐标轴垂直,且点B到直线
的距离相等,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf31e486f5e1c38139e5e0f5b0dfe19f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db31b6ce9408706f77680ac8c75c2ab.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30c20e88a33043f4279fff360c81006e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac35b1e8a952aac4f4cdaaf02d868d04.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65afd543492e927e1497bff76a810fb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cd2ebfb3344f6be987efd6aaf4216e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d42cb68c5c877a455ba7ac0a6b6a651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
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2023-01-16更新
|
242次组卷
|
2卷引用:云南省元谋县第一中学2022-2023学年高二下学期数学期末模拟(六)试题
解题方法
10 . 已知直线
交椭圆
于
,
两点,
是直线
上一点,
为坐标原点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2242ca20bd7ab3d41b128e10a4071521.png)
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
A.椭圆![]() ![]() |
B.![]() |
C.![]() |
D.若![]() ![]() ![]() ![]() |
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2023-01-15更新
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2卷引用:云南省昭通市永善县知临中学2023届高三下学期3月月考数学试题