解题方法
1 . 在平面直角坐标系
中,已知椭圆
过点
,且
.直线
与椭圆C相交于
两点.
(1)当
时,求实数
的取值范围;
(2)当
时,
的面积为4,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c3c738a7717513105839240bf59a09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4037561c629fd07503c6803e1eb62fb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4244af644b011d8292c8533368a9c9a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2020-11-19更新
|
240次组卷
|
2卷引用:江苏省盐城市一中、射阳中学等五校2020-2021学年高二上学期期中联考数学试题
名校
解题方法
2 . 设椭圆
的左、右焦点为
,
,右顶点为
,上顶点为
.已知
.
(Ⅰ)求椭圆的离心率;
(Ⅱ)设
为椭圆上异于其顶点的一点,以线段
为直径的圆经过点
,经过原点的直线
与该圆相切.求直线
的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5076829e649b3f3866d4a7e07a5713e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697c20fca284394bf5d5b9e5f6d952e8.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/c05d9935613b22f7c162f71d468eb945.png)
(Ⅰ)求椭圆的离心率;
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2020-04-08更新
|
416次组卷
|
3卷引用:江苏省南京外国语学校2022-2023学年高二上学期期末数学试题
江苏省南京外国语学校2022-2023学年高二上学期期末数学试题北京市密云区2017-2018学年高三第一学期第三次阶段性练习数学(理)试题(已下线)期末真题必刷压轴60题(23个考点专练)-【满分全攻略】2023-2024学年高二数学同步讲义全优学案(人教A版2019选择性必修第一册)
名校
解题方法
3 . 已知斜率为
的直线
与椭圆
交于
,
两点,线段
的中点为
(
),那么
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279cefeb5c389a37a71e5fd3925f5954.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/703e226b881272c75c6da628443ae20e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
您最近一年使用:0次
2020-03-29更新
|
2567次组卷
|
8卷引用:江苏省南京市秦淮中学2019-2020学年高二上学期期末数学试题
江苏省南京市秦淮中学2019-2020学年高二上学期期末数学试题内蒙古包头市北重三中2019-2020学年高二下学期期中考试数学(理科)试题(已下线)【新教材精创】2.8+直线与圆锥曲线的位置关系(1)-B提高练-人教B版高中数学选择性必修第一册人教A版(2019) 选修第一册 实战演练 第三章 课时练习23 直线与椭圆的位置关系(已下线)第38讲 点差法与定比点差法-2022年新高考数学二轮专题突破精练(已下线)专题12 定比点差法及其应用 微点5 定比点差法综合训练(已下线)专题12 圆锥曲线压轴小题常见题型全归纳(精讲精练)-2(已下线)专题17 圆锥曲线常考压轴小题全归类(16大题型)(练习)
解题方法
4 . 已知椭圆
的离心率为
,焦距为
.斜率为
的直线
与椭圆
有两个不同的交点
,
.
(1)求椭圆
的方程;
(2)若
,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87cf6cca367ce2afd96d7d951f9587e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
您最近一年使用:0次
2020-02-27更新
|
329次组卷
|
2卷引用:山西省阳泉市2019-2020学年高二上学期期末数学(文)试题
解题方法
5 . 如图,在平面直角坐标系
中,椭圆
:
的左右焦点分别为
,
,椭圆右顶点为
,点
在圆
:
上.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/45cdb14c-871e-4a9f-87ed-396f44b7cc20.png?resizew=233)
(1)求椭圆
的标准方程;
(2)点
在椭圆
上,且位于第四象限,点
在圆
上,且位于第一象限,已知
,求直线
的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed6b9540857e386651e191a0a5b5a98.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bed49917754987e3e7183a222d90f0cf.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/45cdb14c-871e-4a9f-87ed-396f44b7cc20.png?resizew=233)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/965d63c773814e8c309190e09fe0f16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d8ad9e94d07405a6be585f81a0d623b.png)
您最近一年使用:0次
2020-02-07更新
|
335次组卷
|
2卷引用:2020届江苏省常州市高三上学期期末数学试题
6 . 如图,点F为椭圆C:
(a>b>0)的左焦点,点A,B分别为椭圆C的右顶点和上顶点,点P(
,
)在椭圆C上,且满足OP∥AB.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/d5ecb09b-0aea-4543-81ce-8575301831a6.png?resizew=208)
(1)求椭圆C的方程;
(2)若过点F的直线l交椭圆C于D,E两点(点D位于x轴上方),直线AD和AE的斜率分别为
和
,且满足
﹣
=﹣2,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9db9373e74ecf5d63ad98afe66aa4ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/839c7616cd0d90265f4b2c9c021254fe.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/30/d5ecb09b-0aea-4543-81ce-8575301831a6.png?resizew=208)
(1)求椭圆C的方程;
(2)若过点F的直线l交椭圆C于D,E两点(点D位于x轴上方),直线AD和AE的斜率分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
您最近一年使用:0次
7 . 已知直线y=kx+1与焦点在x轴上的椭圆
1(b>0)总有公共点,则b的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c1b3c52e6d9fc6ca5befd8b84ca560a.png)
A.[1,4) | B.(1,+∞) | C.[1,+∞) | D.[1,2) |
您最近一年使用:0次
名校
8 . 已知
,
满足
,则
的取值范围是_____ .
![](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/2ba9b1048727aaced39a08744ddf2432.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b1d7f18dc500e4d345b0703afbc6cb.png)
您最近一年使用:0次
2020-01-08更新
|
303次组卷
|
3卷引用:江苏省淮安市淮阴区淮阴中学2019-2020学年高二上学期期末数学试题
名校
9 . 已知直线
与直线
的交点为
,椭圆
的焦点为
,
,则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7849da610bb9680f596fa0f1d6f07c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe62a7616aad79748c9410aa4d08676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6205da5e1d2730ee0b3de8bca3e29f5e.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/a71155bfa5b1bd5ff45a7c9eeb8b20bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-01-02更新
|
488次组卷
|
4卷引用:期末押题检测卷-2021-2022学年高二数学尖子生同步培优题典(苏教版2019选择性必修第一册)
(已下线)期末押题检测卷-2021-2022学年高二数学尖子生同步培优题典(苏教版2019选择性必修第一册)北京市中央民族大学附属中学2019-2020学年高二上学期期中考试数学试题江苏省镇江市句容碧桂园学校2022-2023学年高二上学期12月第二次月考数学试题苏教版(2019) 选修第一册 突围者 第3章 第一节 课时1 椭圆的标准方程
10 . 平面直角坐标系
中,已知椭圆
的离心率为
,且点
在椭圆
上.椭圆
的左顶点为
.
(1)求椭圆
的标准方程;
(2)过点
作直线
与椭圆
交于另一点
.若直线
交
轴于点
,且
,求直线
的斜率.
![](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/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e454c7161999e2a67138869f59d319b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ff26eeabfaef6e944082999e39e814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次