1 . 已知椭圆E:
的离心率为
,A,B是它的左、右顶点,过点
的动直线l(不与x轴重合)与E相交于M,N两点,
的最大面积为
.
(1)求椭圆E的方程;
(2)设
是直线AM与直线BN的交点.
(i)证明m为定值;
(ii)试堔究:点B是否一定在以MN为直径的圆内?证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d776a89f4fd29dccffe1040069d59ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a11cb104b04c4e6a1be700e81da279a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
(1)求椭圆E的方程;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82aaa597a5aa6176863eda3fdf83e181.png)
(i)证明m为定值;
(ii)试堔究:点B是否一定在以MN为直径的圆内?证明你的结论.
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3卷引用:湖南省2023届高三下学期3月联考数学试题
2 . 在平面直角坐标系中,已知点
到点
的距离与到直线
的距离之比为
.
(1)求点
的轨迹
的方程;
(2)过点
且斜率为
的直线
与
交于A,B两点,与
轴交于点
,线段AB的垂直平分线与
轴交于点
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b707fdf035eb2fb4467958893c60381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c778e409fe63e187a09444bc888e8f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/464900d8e183167a962a274023f44c9c.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/81dea63b8ce3e51adf66cf7b9982a248.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/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6ade057ab86a163fe06d4a101b62b5.png)
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9卷引用:湖南省株洲市第一中学2022届高三上学期期中数学试题
3 . 已知椭圆
,
的上、下顶点是
,
,左,右顶点是
,
,点
在椭圆
内,点
在椭圆
上,在四边形
中,若
,
,且四边形
面积的最大值为
.
(1)求
的值.
(2)已知直线
交椭圆
于
,
两点,直线
与
交于点
,证明:当
变化时,存在不同于
的定点
,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baff7011784b367fc9bf84e208269240.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1295b852efee8d6d0a92cbe38439c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e94cea3a50438fdf994c44bb79020a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50639bca2f8b8b4f3db2ec01b1fd2ed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab8d0b87680432b4b59bde91688b833.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e94cea3a50438fdf994c44bb79020a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533a7b702ada1dd80123e4041271d521.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/303094682b317daea83be885d1c7ff4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.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/7d0ff310aabd2282b539537ebed3f788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec18c028746b73be7503ff6ff458a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0db06552aa4469859f27f601d5f07536.png)
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3卷引用:湖南省四大名校名师团队2023届高三普通高校招生统一考试数学模拟冲刺卷(一)
名校
解题方法
4 . 已知点
动点
满足直线
和
的斜率之积为
,记点
的轨迹为曲线
,过坐标原点的直线交
于
两点,点
在第一象限,
轴,垂足为
,连接
并延长交
于点
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fb832394f7a21e60271d7ad3afc49c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e69d2b798744645af88a4fa411344a83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae95e96ce568efee50145f8d017353df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3d566704b44ea4ef1f99c37bd46902.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
A.曲线![]() ![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
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3卷引用:湖南省株洲市二中教育集团2023届高三上学期1月期末联考数学试题
名校
解题方法
5 . 已知点
在椭圆
(
)上,且该椭圆的离心率为
.直线l交椭圆于P,Q两点,直线
,
的斜率之和为零,
(1)求椭圆的标准方程;
(2)若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39ea1f5bdd213c7c3a571b4c38850bf1.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/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
(1)求椭圆的标准方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb336da48781e262d17fe6958857ed3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c499b1f470978c4f8cc05ffdebc2e961.png)
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3卷引用:湖南省常德市汉寿县第一中学2022-2023学年高二下学期开学考试数学试题
解题方法
6 . 如图,直线
与椭圆
相交于
两点,且
的中点为
;
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/4/58bef9ba-6112-4a62-90ae-967d3fcdf9b3.png?resizew=347)
(1)求椭圆的离心率;
(2)若直线
与椭圆相交于
两点,求证:
四点在同一个圆上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec70c15635634679ad4eaccb619df5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0bea681006f614f8a070e9c6a942c04.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/4/58bef9ba-6112-4a62-90ae-967d3fcdf9b3.png?resizew=347)
(1)求椭圆的离心率;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73aa23d5bae655a13ecad8f97505dbe7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b1b15a4605fce993cb13aefbf40360.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff2b0577c462dc522d573cb3ef9374c.png)
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7 . 设A,B分别是直线
和
上的动点,且
,设O为坐标原点,动点G满足
.
(1)求点G运动的曲线C的方程;
(2)直线
与曲线C交于M,N两点,O为坐标原点,当k为何值,
恒为定值,并求此时
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91a18f8751aa1008f1e43516a588207.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50f899446faaf4935179eec468e5943b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dd2d9dc6872ed14cc33ce6619c59a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c2edbce7e34726aaeb2bb5da100004.png)
(1)求点G运动的曲线C的方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/327a8132cb929667c033a3c20bd9c67c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4de13a47637548ce5594ed8d64dec0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f02028a3847c4807c2d3cf0ea7efb8.png)
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5卷引用:湖南省邵阳市邵东创新实验学校2023-2024学年高二上学期期中数学试题
(已下线)湖南省邵阳市邵东创新实验学校2023-2024学年高二上学期期中数学试题辽宁省渤海大学附属高级中学2022届高三考前测试数学试题(已下线)专题24 圆锥曲线中的存在性、探索性问题 微点2 圆锥曲线中的探索性问题四川省泸县第五中学2022-2023学年高二下学期期中数学(文)试题四川省泸县第五中学2022-2023学年高二下学期期中数学(理)试题
解题方法
8 . 已知椭圆
的左、右焦点分别为
,
,P为椭圆上一动点,直线
与圆
相切于Q点,且Q是线段
的中点,三角形
的面积为2.
(1)求椭圆C的方程;
(2)过点P(点P不在x轴上)作圆
的两条切线
、
,切点分别为M,N,直线MN交椭圆C于点D、E两点,求三角形ODE的面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eec68eeec1d38c8451b3038ab5ff4a74.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/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf8a7029669bf1774a24f3ef6273ca88.png)
(1)求椭圆C的方程;
(2)过点P(点P不在x轴上)作圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/560adea7b0d4fbe4131fc41f3fcbd871.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
您最近一年使用:0次
9 . 如图,已知椭圆
的离心率为
,直线
与圆
交于M,N两点,
.
![](https://img.xkw.com/dksih/QBM/2022/5/24/2986184297996288/2987794885115904/STEM/6acdb0b9-d3a6-4ae5-8949-93a16d59977d.png?resizew=204)
(1)求椭圆E的方程;
(2)A,B为椭圆E的上、下顶点,过点A作直线
交圆O于点P,交椭圆E于点Q(P,Q位于y轴的右侧),直线BP,BQ的斜率分别记为
,
,试用k表示
,并求当
时,△
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74f3c409c807d57ec86a191d236ed343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1eb4faa1ed332f29fd1f6a64991676d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7b4bcb812c997db47214cb52c905f99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/182bfe886400fd55c5f177a7aecb9b4c.png)
![](https://img.xkw.com/dksih/QBM/2022/5/24/2986184297996288/2987794885115904/STEM/6acdb0b9-d3a6-4ae5-8949-93a16d59977d.png?resizew=204)
(1)求椭圆E的方程;
(2)A,B为椭圆E的上、下顶点,过点A作直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7b93e8bb6e793db1e9aa39de68532b7.png)
![](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/7e18b579406e8b774e0d814f5acc7281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004609a86874c3e2cb6a33221889432e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/281db65d019f6f77dc0dfcc675ce93d1.png)
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2022-05-26更新
|
1102次组卷
|
4卷引用:湖南省永州市第一中学2021-2022学年高二下学期期末模拟数学试题
湖南省永州市第一中学2021-2022学年高二下学期期末模拟数学试题华大新高考联盟名校2022届高考押题(全国卷)理科数学试题华大新高考联盟2022届名校5月高考押题卷数学试题(已下线)重难点15七种圆锥曲线的应用解题方法-2
2022·全国·模拟预测
10 . 法国数学家加斯帕·蒙日被称为“画法几何创始人”、“微分几何之父”.他发现与椭圆相切的两条互相垂直的切线的交点的轨迹是以该椭圆中心为圆心的圆,这个圆称为该椭圆的蒙日圆.若椭圆
的蒙日圆为
,过
上的动点
作
的两条切线,分别与
交于
,
两点,直线
交
于
,
两点,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/163b5beef24f681605adecc6b0ba76e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c385c7c3482ce42ba4d5106bf865353e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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13卷引用:湖南省常德市第一中学2022-2023学年高二下学期期中数学试题
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