解题方法
1 . 在平面直角坐标系
中,设椭圆
的离心率为
点
在椭圆上,过椭圆的焦点且与
轴垂直的直线被椭圆
截得的弦长为
.
(1)求椭圆
的方程;
(2)直线
与椭圆
相交于
两点,点
不在
轴上,点
关于
轴的对称点为
求
的面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5289aa21ff60cbf5041f1e0e4e47ffd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecebe8de891892765fb80e5c521e377b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7015cdd5d287a8f9f510165a90abf457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b181952b8e9316547203300b169503c.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d57ededbfbe717b2f1f160b1d946d2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3233baa46beda7984214de6e5da0e0e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb552ac4e32bb799842ddf2d19a48b5e.png)
您最近一年使用:0次
名校
解题方法
2 . 已知圆
与x轴交于点
,且经过椭圆G:
的上顶点,椭圆G的离心率为
.
(2)若点A为椭圆G上一点,且在x轴上方,B为A关于原点O的对称点,点M为椭圆G的右顶点,直线PA与MB交于点N,
的面积为
,求直线PA的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de6aa4bb3a9c773feabbbd0d11f05896.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96499747e4aea990f4b878eea8d73ab7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347b68f42934c74e0d759a67613a1da9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe2c533dbc23a34518f72f3cb14f330.png)
(2)若点A为椭圆G上一点,且在x轴上方,B为A关于原点O的对称点,点M为椭圆G的右顶点,直线PA与MB交于点N,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a163fbf4333651741cec447995092a19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f91954f45b0677271eccdcd218a9530.png)
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名校
解题方法
3 . 已知椭圆的焦点为
,且该椭圆经过点
.
(1)求椭圆的标准方程;
(2)直线
过
且与椭圆交于
两点,当
面积最大时,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fecb84eefb8a3ed8db2ce10acae6b6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22760845eeb2bdc4d546584670d175ac.png)
(1)求椭圆的标准方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ff8a5886e42095da57422c8777c10d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2024高二·江苏·专题练习
解题方法
4 . 已知椭圆C关于x轴,y轴都对称,并且经过两点,
.
(1)求椭圆C的方程;
(2)直线l经过椭圆C的左焦点且垂直于椭圆的长轴,与椭圆C交于D,E两点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15514bc735fe4b744672edefe00009c.png)
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解题方法
5 . 已知椭圆
的左、右顶点为
,点G是椭圆C的上顶点,直线
与圆
相切,且椭圆C的离心率为
.
(1)求椭圆E的方程;
(2)过点
的直线l交E于M,N两点,若
,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02f88df3ed2a92ccf774fee527d5a8ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ae7a670e99c588b81cf25ae7fc15d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
(1)求椭圆E的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1b6f209d1a805437046ca6ef79dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/340d93335ec005ba727dc79dee4c0435.png)
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解题方法
6 . 已知椭圆
的右焦点为
,点
在
上.
(1)求
的方程;
(2)斜率为1的直线
与
交于
,
两点,线段
的中点为
,求点
的横坐标的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af292f60c635d2bb4c38379c6bd04ac5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)斜率为1的直线
![](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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
解题方法
7 . 如图,在平面直角坐标系
中,已知椭圆
:
(
)的长轴长是短轴长的2倍,焦距为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/14/8b3a14f0-97a7-44da-8bf1-59051d1a55bd.png?resizew=168)
(1)求
的标准方程;
(2)若斜率为
的直线
(不过原点
)交
于
,
两点,点
关于
的对称点
在
上,求四边形
的面积.
![](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/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41322821ce31416fdac8dd6e0aa41c71.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/14/8b3a14f0-97a7-44da-8bf1-59051d1a55bd.png?resizew=168)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/1dde8112e8eb968fd042418dd632759e.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e902eb263971b466d0fcd91c56b453.png)
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8 . 已知椭圆
的长轴长为4,椭圆上的点到焦点的距离的最大值为3.
(1)求椭圆C的标准方程;
(2)倾斜角为45°的直线l过椭圆的左焦点并交椭圆于M,N两点(O为坐标原点),求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
(1)求椭圆C的标准方程;
(2)倾斜角为45°的直线l过椭圆的左焦点并交椭圆于M,N两点(O为坐标原点),求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
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2024-02-05更新
|
181次组卷
|
3卷引用:江苏省盐城市大丰区新丰中学等五校2023-2024学年高二上学期期末联考数学试题
9 . 已知椭圆
的左右焦点分别为
,
,且椭圆过点
,直线
与椭圆
相交于
,
两点.
![](https://img.xkw.com/dksih/QBM/2024/1/22/3416829436559360/3418748643033088/STEM/def8a15c98804ff0806a54bb62dd5414.png?resizew=164)
(1)求椭圆
的方程;
(2)若
不过原点且不平行于坐标轴,记线段
的中点为
,求证:直线
的斜率与
的斜率的乘积为定值;
(3)若
,求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c495971e4dab6f02b0a07ccd860c6d32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/087f47d942fb125734a8a5fd599aa4f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a75defcf53e29d3814c4801c8ebacf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/480eeb06d3e1cb6751b367a24047e384.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b89ef51dc02763c03ef4d937f6386bf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/2024/1/22/3416829436559360/3418748643033088/STEM/def8a15c98804ff0806a54bb62dd5414.png?resizew=164)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
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解题方法
10 . 已知椭圆
的短轴长为
,右顶点到右焦点的距离为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/31/859f3ebc-9ff1-45ba-83bf-d1041f52cf58.png?resizew=169)
(1)求椭圆
的标准方程;
(2)如图所示,设点
是椭圆
的右顶点.过点
的直线
与椭圆
相交于不同的两点
,且都在
轴的上方.在
轴上是否存在点
,使
,若存在,请求出点
的坐标;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/31/859f3ebc-9ff1-45ba-83bf-d1041f52cf58.png?resizew=169)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)如图所示,设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb442fb1fe1a5d9768cf11c3e1b7ec5b.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/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d08dbfd03288ff12e7365b0e6331a3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2024-01-24更新
|
970次组卷
|
2卷引用:江苏省南京市南京师大附中2024届高三寒假模拟测试数学试题