1 . 在平面直角坐标系内,已知
两点关于原点对称,且
的坐标为
. 曲线
上的动点
满足当直线
的斜率
都存在时,
.
(1)求曲线
的方程;
(2)已知直线
过点
且与曲线
交于
两点,问是否存在定点
,使得直线
关于
轴对称?若存在,求出点
的坐标;若不存在,说明理由.
![](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/9c63311ddb2cd37499cab35b3eb56d04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9462c2bc6290e12b0e83ac905885c9e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f9a2beff62fd178714eba89951d20c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/151e09f3a383d7811c619eef3a6398cf.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd0825e68122a65426840fbf07cf296.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99544f1fe605de822213b0e8bbe541f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc47ecc42636c918e00812607fb5da65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
解题方法
2 . 椭圆C的方程为
,过椭圆左焦点
的直线与椭圆相交于点P、Q,椭圆的右焦点为
,己知
的周长为8,且椭圆过点
.
(1)求椭圆C中
的值;
(2)过椭圆C的右焦点
作直线l交椭圆C于A,B两点,交y轴于M点,若
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.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/4fea5f7430235e65d2c2e6b2ecc46712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2412f32502da25289dc11495947ee8e4.png)
(1)求椭圆C中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)过椭圆C的右焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65b2dacadb6a8b8fe5629931f1455e7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32705e629d8b9187b53efeee6605af15.png)
您最近一年使用:0次
3 . 已知椭圆
的左右焦点分别为
,点
在椭圆
上,其左右顶点分别为
为椭圆
的短轴端点,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/e8ce9190-7edb-4491-8fc6-9dcd82cb77dc.png?resizew=312)
(1)求椭圆
的方程;
(2)设
为椭圆
上异于
的任意一点,设直线
与直线
交于点
,过
作直线
的垂线交椭圆
于
两点.
(i)设直线
与
的斜率分别为
,证明:
为定值,并求出该定值;
(ii)求
(
为坐标原点)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/be7e86ffe4417ef0fc3990049f80743b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81687c0af83f550bcb802e2d82c76a61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/178fe35c61e966a344f6ef34c79d86fd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/e8ce9190-7edb-4491-8fc6-9dcd82cb77dc.png?resizew=312)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2bbc1205da581e3afaf6b3286c3c641.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
(i)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2d8707cafd80cde5c561e2b5a3531c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4ded6dbecb802a8a296e767c4b41ea4.png)
(ii)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
您最近一年使用:0次
4 . 已知曲线
的方程为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da0561283762340f4d55ef53214562e4.png)
A.曲线![]() |
B.曲线![]() ![]() |
C.曲线![]() ![]() |
D.曲线![]() ![]() |
您最近一年使用:0次
2023-03-08更新
|
603次组卷
|
5卷引用:浙江省湖州市2022-2023学年高二上学期期末数学试题
浙江省湖州市2022-2023学年高二上学期期末数学试题(已下线)专题3.4 双曲线的标准方程和性质【九大题型】-2023-2024学年高二数学举一反三系列(人教A版2019选择性必修第一册)(已下线)第03讲 3.2.1双曲线及其标准方程(2)(已下线)3.2.1 双曲线及其标准方程(精练)-2023-2024学年高二数学《一隅三反》系列(人教A版2019选择性必修第一册)(已下线)专题11 双曲线的标准方程6种常见考法归类 - 【考点通关】2023-2024学年高二数学高频考点与解题策略(苏教版2019选择性必修第一册)
名校
解题方法
5 . 舒腾尺是荷兰数学家舒腾(1615-1660)设计的一种作图工具,如图,
是滑槽
的中点,短杆
可绕
转动,长杆
通过
处的铰链与
连接,
上的栓子
可沿滑槽
滑动.当点
在滑槽
内作往复移动时,带动点
绕
转动,点
也随之而运动.记点
的运动轨迹为
,点
的运动轨迹为
.若
,
,过
上的点
向
作切线,则切线长的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54298f581688081d0b0214334a0dedf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e47bb98258ebfcf1d8ad4bac10b7ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/11/c4eeff73-ba84-4ca7-89f5-8e0749040c02.png?resizew=182)
您最近一年使用:0次
2023-09-10更新
|
241次组卷
|
12卷引用:浙江省湖州市三贤联盟2021-2022学年高二上学期期中联考数学试题
浙江省湖州市三贤联盟2021-2022学年高二上学期期中联考数学试题(已下线)2.2 直线与圆的位置关系(B 能力培优练)-2021-2022学年高二数学上学期同步双培优检测(苏教版2019选择性必修第一册)(已下线)第二章 圆与方程(选拔卷)-【单元测试】2021-2022学年高二数学尖子生选拔卷(苏教版2019选择性必修第一册)2023版 北师大版(2019) 选修第一册 名师精选卷 第一、二、三章滚动测试广东省大湾区2022-2023学年高二上学期期末联考数学试题(已下线)第2章 直线和圆的方程(基础、典型、新文化、压轴)分类专项训练-2022-2023学年高二数学考试满分全攻略(人教A版2019选择性必修第一册)福建省泉州市晋江学校2023-2024学年高二上学期第二次月考数学试题江苏省南通市2021届高三下学期5月四模数学试题(已下线)第11题 与圆有关的最值问题-2021年高考数学真题逐题揭秘与以例及类(新高考全国Ⅰ卷)(已下线)专题26 求动点轨迹方程 微点7 求动点轨迹方程综合训练江苏省宿迁市沭阳县建陵高级中学2022-2023学年高三上学期期中数学试题(已下线)技巧02 填空题的答题技巧(8大题型)(练习)
名校
6 . 已知曲线
方程为
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23844389070ae74be05bdb1a91ef93bd.png)
A.若![]() ![]() ![]() |
B.曲线![]() |
C.若![]() ![]() |
D.当![]() ![]() |
您最近一年使用:0次
2022-11-24更新
|
575次组卷
|
3卷引用:浙江省湖州中学2022-2023学年高二上学期期中数学试题
7 . 已知椭圆
,长轴长为
,过点
且与
轴平行的直线被椭圆
截得的线段长为
.
(1)求椭圆C的标准方程;
(2)设过点
的动直线(不与
轴垂直)与椭圆
交于
两点,是否在
轴上存在定点
,使得
与
的斜率之积为定值?若存在,求出所有满足条件的
点坐标;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/f45a602120845c28f8376f2be33e3535.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bacfc149ede71417fa599c21b5a84cb8.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/6ce9a4fe0565a6810452d3fa9c747662.png)
(1)求椭圆C的标准方程;
(2)设过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bf25e032b5599ac49383de06e776365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf702adb116c1e46569eb7050d029f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
您最近一年使用:0次
8 . 古希腊数学家阿波罗尼奥斯采用平面切割圆锥的方法来研究圆锥曲线,用垂直于圆锥轴的平面去截圆锥,得到的截面是圆;当平面不垂直于圆锥轴时得到的截面可能是椭圆.若用周长为
的矩形
截某圆锥得到椭圆
,且椭圆
与矩形
的四边恰好相切.设椭圆
在平面直角坐标系中的方程为
,下列选项中满足题意的方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce9d8e049789c707dbd91da629ba5b8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09757d013574cf058d5bb944fdf034a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09757d013574cf058d5bb944fdf034a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09757d013574cf058d5bb944fdf034a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-11-17更新
|
427次组卷
|
4卷引用:浙江省湖州市三贤联盟2022-2023学年高二上学期期中联考数学试题
浙江省湖州市三贤联盟2022-2023学年高二上学期期中联考数学试题浙江省湖州市安吉振民高级中学2023-2024学年高二上学期期中数学试题(已下线)3.1.1椭圆及其标准方程 (分层作业)(3种题型分类基础练+能力提升练)-【上好课】高二数学同步备课系列(人教A版2019选择性必修第一册)(已下线)第05讲 椭圆 (高频考点,精练)
名校
解题方法
9 . 已知椭圆
的离心率是
,且过点
.
![](https://img.xkw.com/dksih/QBM/2022/1/25/2901987014975488/2902988827508736/STEM/17a73665-997b-4441-9ba4-fa4648654038.png?resizew=208)
(1)求椭圆
的标准方程;
(2)若直线
与椭圆
交于A、B两点,线段
的中点为
,
为坐标原点,且
,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f13bf66fc845b115de4ec45b4be0e23.png)
![](https://img.xkw.com/dksih/QBM/2022/1/25/2901987014975488/2902988827508736/STEM/17a73665-997b-4441-9ba4-fa4648654038.png?resizew=208)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643a65229468c4c4863835e8f020f862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/866b81a8384cce4f24867baca2e6820c.png)
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6卷引用:浙江省湖州市2021-2022学年高二上学期期末数学试题
10 . 已知圆
的半径为定长
,A是圆
所在平面内一个定点,
是圆上任意一点,线段
的垂直平分线
和直线
相交于点
.当点
在圆上运动时,下列判断正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/1/25/2901987014975488/2902988826394624/STEM/20ae85c9-7e00-4dd5-9c06-b9afe3aabae0.png?resizew=158)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.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/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://img.xkw.com/dksih/QBM/2022/1/25/2901987014975488/2902988826394624/STEM/20ae85c9-7e00-4dd5-9c06-b9afe3aabae0.png?resizew=158)
A.点![]() | B.点![]() |
C.点![]() | D.点![]() |
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2卷引用:浙江省湖州市2021-2022学年高二上学期期末数学试题