1 . 在平面直角坐标系
中,已知椭圆
的右焦点
坐标是
,且椭圆
上的点到
距离的最大值为
,过点
的直线交椭圆
于点
.
(1)求椭圆
的方程;
(2)设
为椭圆上一点,且满足
(
为坐标原点),当
时,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c38d8390234e0cb46172c8e2b02ea516.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b23a03ca8f1729bfcadf513784817fc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab46ea0cba2d06283fae3d864a2329e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7908e8e2ca67ad0f739860222423950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd6c84e127366a8840b6720a9dacd8bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4f263df3ae9b354401c14685be256f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2 . 已知圆
,
,动圆
与圆
外切,与圆
内切,记圆心
的轨迹为曲线
.
(1)求曲线
的方程;
(2)直线
过点
,且与曲线
交于A,B两点,满足
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8284506de3f837db03d167c73c4af43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f77621e98261d23fe2e9a9ac2661b1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求曲线
![](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/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4773026eea28a816ca7544d4c3c72ac2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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解题方法
3 . 已知椭圆
(其中
)的焦距2,点
在
上.
(1)求
的方程;
(2)若过
右焦点的直线
交
于
,
两点,且
,求
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e90064d012356de1877aa697cd6d6ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bcc2879cdec07eb0a457137f6aaff67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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23-24高二上·广东深圳·期中
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解题方法
4 . 已知A,B分别是椭圆E:的左、右顶点,C,D是椭圆上异于A,B的两点,若直线AC,BD的斜率
,
满足
,则直线CD过定点,定点坐标为
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5 . 已知椭圆C:
的右焦点为F,斜率不为0的直线l与C交于A,B两点.
(1)若
是线段AB的中点,求直线l的方程;
(2)若直线l经过点
(点A在点B,Q之间),直线BF与C的另一个交点为D,求证:点A,D关于x轴对称.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a160698d616be58188f274e9a25ba5.png)
(2)若直线l经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78e0b4cce429003557b051ea0fa2f7de.png)
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2023-11-18更新
|
718次组卷
|
5卷引用:江苏省南通市崇川区、通州区2023-2024学年高二上学期11月期中联考数学试题
解题方法
6 . 已知椭圆
的左、右焦点分别为
,
,O为坐标原点,点
在椭圆C上,且
,直线
过点
且与椭圆C交于A,B两点.
(1)求椭圆C的标准方程;
(2)已知
,
,若直线
,
交于点D,探究:点D是否在某定直线上?若是,求出该直线的方程;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.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/a216c108cb54c2b3845ac7dce1ed10a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02c3677ab351b6195ae325b971a8573.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
(1)求椭圆C的标准方程;
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3afced09f15e80420611e9199c41fb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/024494ac1df3b60ddcaa0cef4940ca87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
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解题方法
7 . 已知椭圆
的左、右焦点分别为
,该椭圆的离心率为
,且椭圆上动点
与点
的最大距离为3.
(1)求椭圆
的方程;
(2)如图,若直线
与
轴、椭圆
顺次交于
(点
在椭圆左顶点的左侧),且
,求
面积的最大值.
![](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/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/12/90384f10-0981-4eb0-8516-f9041f385bac.png?resizew=238)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)如图,若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89fc107c4b33d6dd648b396156494ea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0e389667b3385eee57f681b500a04a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0b4efdd1bb37691c5473e53a748e44c.png)
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2023-11-17更新
|
546次组卷
|
4卷引用:安徽省A10联盟2023-2024学年高二上学期11月期中考试数学试题
8 . 在平面直角坐标系
中,已知直线
与椭圆
交于点
(
在
轴上方),
且
.设点
在
轴上的射影为
,
的面积为1(如图1).
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/29/35b764f1-8a54-43e8-b922-3e1cb15f00df.png?resizew=380)
(1)求椭圆的方程;
(2)设平行于
的直线与椭圆相交,其弦的中点为
.
①求证:直线
的斜率为定值;
②设直线
与椭圆相交于两点
(
在
轴上方),点
为椭圆上异于
一点,
直线
交
于点
,
交
于点
,如图2,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347b68f42934c74e0d759a67613a1da9.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)
且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a97dc43464f701e60943a9dcd9f154d4.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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf2b5e712b42f748a3c30bb5d160c18.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/29/35b764f1-8a54-43e8-b922-3e1cb15f00df.png?resizew=380)
(1)求椭圆的方程;
(2)设平行于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
①求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0009063fe00277645aff1be6e32471.png)
②设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f0009063fe00277645aff1be6e32471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/0c82a10b4f0c9323d726804c89dd9548.png)
直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d245a2b445cf48b23859af6f0506d077.png)
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解题方法
9 . 已知椭圆
经过点
,且右焦点为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c872c5d9b620b1b2e114a61a1f9865d8.png)
(1)求C的标准方程;
(2)过点
且斜率不为0的直线l与C交于M,N两点,直线
分别交直线AM,AN于点E,F,以EF为直径的圆是否过定点?若是,求出定点坐标;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ee9d4ad39e56940f519bd3acc5e85ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84114a39cd1c55b43da8366588101842.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c872c5d9b620b1b2e114a61a1f9865d8.png)
(1)求C的标准方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ec21e660222f593dc2ec2175dd03e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
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2023-11-16更新
|
505次组卷
|
3卷引用:湖南省长沙市长沙县第二中学2023-2024学年高二上学期期中数学试题
湖南省长沙市长沙县第二中学2023-2024学年高二上学期期中数学试题湖南省五市十校教研教改共同体2023-2024学年高二上学期期中联考数学试题(已下线)微考点6-3 圆锥曲线中的定点定值问题(三大题型)
名校
解题方法
10 . 已知椭圆
过点
,离心率为
.
(1)求椭圆
的方程;
(2)已知
的下顶点为
,不过
的直线
与
交于点
,线段
的中点为
,若
,试问直线
是否经过定点?若经过定点,请求出定点坐标;若不过定点,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f21c7162941d2b54ebafb1795599195.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知
![](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/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/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b12413217a6f54bf536289cdf9205b07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2023-11-16更新
|
1234次组卷
|
11卷引用:江西省大联考2023-2024学年高二上学期11月期中教学质量检测数学试题
江西省大联考2023-2024学年高二上学期11月期中教学质量检测数学试题辽宁省本溪市第一中学2023-2024学年高二上学期11月期中考试数学试题山西省朔州市怀仁市第一中学校2023-2024学年高二上学期期中考试数学试题江西省鹰潭市贵溪一中2023-2024学年高二上学期第二次月考数学试题河北省邯郸市五校2023-2024学年高二上学期二调考试(12月)数学试题四川省绵阳市南山中学实验学校2023-2024学年高二上学期期末模拟数学试题(一)河北省沧州市部分学校2023-2024学年高二上学期12月月考数学试题(已下线)专题03 椭圆13种常见考法归类(3)重庆市第七中学校2023-2024学年高二上学期期末模拟数学试题河南省焦作市宇华实验学校2023-2024学年高二上学期期末拓展数学试题(已下线)微考点6-3 圆锥曲线中的定点定值问题(三大题型)