解题方法
1 . 已知椭圆
:
的离心率
,椭圆
过点
.
(1)求椭圆
的方程;
(2)直线
与椭圆
交于A,B两点,若
的重心在直线
上(
为坐标原点),求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de85df85401e7e8da683ea4a784963c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f13bf66fc845b115de4ec45b4be0e23.png)
(1)求椭圆
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
您最近一年使用:0次
名校
解题方法
2 . 已知椭圆
:
的左、右焦点分别为
,
,离心率
,
为椭圆上一动点,
面积的最大值为2.
(1)求椭圆
的方程;
(2)若
,
分别是椭圆
长轴的左、右端点,动点
满足
,连接
交椭圆于点
,
为坐标原点.证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.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/075ba8c6fb5ef7288cd3fed425c8e69e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fea226393bfaff7311ffd8870eddc55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.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/297bc912cb09546db07e4fb6be67af40.png)
您最近一年使用:0次
2022-07-05更新
|
1074次组卷
|
5卷引用:广东省湛江2021-2022学年高二下学期期末数学试题
广东省湛江2021-2022学年高二下学期期末数学试题陕西省西安市蓝田县2022-2023学年高二上学期期末文科数学试题(已下线)第32节 圆锥曲线中的定点定值问题(已下线)第10讲 高考难点突破二:圆锥曲线的综合问题(定值问题) (精讲)天津市天津中学2022-2023学年高二上学期期中数学试题
名校
解题方法
3 . 已知定点
,圆
:
,点Q为圆
上动点,线段MQ的垂直平分线交NQ于点P,记P的轨迹为曲线C.
(1)求曲线C的方程;
(2)过点M与N作平行直线
和
,分别交曲线C于点A,B和点D,E,求四边形ABDE面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1cf8af6e62058cc4e2d83d5da7f4c68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a8607b7bdbcb604e6fcfbccb66ed2f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(1)求曲线C的方程;
(2)过点M与N作平行直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
您最近一年使用:0次
2022-06-13更新
|
781次组卷
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14卷引用:广东省广州市第九十七中学2022-2023学年高二上学期期末数学试题
广东省广州市第九十七中学2022-2023学年高二上学期期末数学试题2020届安徽省芜湖市高三上学期期末数学(理)试题安徽省六安市第一中学2020-2021学年高二上学期期末数学(文)试题黑龙江省大庆外国语学校2021-2022学年高二上学期期末考试数学(文理合卷)试题湖南省湘潭市部分学校2022-2023学年高三上学期期末线上联考数学试题甘肃省兰州市西北师范大学附属中学2023-2024学年高二上学期期末考试数学试卷2020届高三1月(考点08)(理科)-《新题速递·数学》四川省成都七中2020-2021学年度高二上期10月阶段性考试理科数学试题四川省成都七中2020-2021学年度高二上学期10月阶段性考试文科数学试题(已下线)知识点:直线与圆锥曲线关系 易错点1 弦长公式选择不合理导致解题繁琐(已下线)第15讲 椭圆-【暑假自学课】2022年新高二数学暑假精品课(人教版2019必修第二册+选择性必修第一册)新疆乌鲁木齐市第八中学2023届高三上学期第一次月考数学(理)试题2021年陕西省渭南市韩城市高中数学竞赛试题四川省达州市宣汉中学2022-2023学年高二下学期入学考试理科数学试题
名校
解题方法
4 . 已知椭圆
:
(
)的离心率为
,其左、右焦点分别为
,
,
为椭圆
上任意一点,
面积的最大值为1.
(1)求椭圆
的标准方程;
(2)已知
,过点
的直线
与椭圆
交于不同的两点
,
,直线
,
与
轴的交点分别为
,
,证明:以
为直径的圆过定点.
![](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/8d5989c84e320b504511f23eeb6e7357.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/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c820e30560907adc6ad54b2918011e8e.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d655ee6d4c2285b6f59652360862d2.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50b3ae183997b707d16eb4e7f6712fa.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
您最近一年使用:0次
2022-06-01更新
|
2360次组卷
|
15卷引用:广东省广州市2022-2023学年高二上学期期末数学试题
广东省广州市2022-2023学年高二上学期期末数学试题云南省普洱市2021-2022学年高二下学期期末考试数学试题广西桂林市荔浦县荔城中学2022-2023学年高二上学期期末考试数学试题广东省广州市天省实验学校2023—2024学年高二上学期12月月考数学试题(已下线)模块四 专题5 重组综合练(广东)期末终极研习室(高二人教A版)山东省烟台市2022届高三三模数学试题(已下线)9.5 三定问题及最值(精练)(已下线)10.6 三定问题及最值(精练)福建省厦门第二中学2022-2023学年高二下学期4月月考数学试题(已下线)第25讲 圆锥曲线直线圆过定点问题-【同步题型讲义】2022-2023学年高二数学同步教学题型讲义(人教A版2019选择性必修第一册)宁夏银川一中、昆明一中2023届高三联合二模考试数学(文)试题福建省泉州科技中学2022-2023学年高二上学期期中考试数学试题(已下线)重难专攻(十)圆锥曲线中的定点问题 讲(已下线)微考点6-3 圆锥曲线中的定点定值问题(三大题型)(已下线)专题08 圆锥曲线 第二讲 圆锥曲线中的定点、定直线与定值问题(解密讲义)
5 . 在平面直角坐标系中,
,
两点的坐标分别为
,
,直线
,
.相交于点M且它们的斜率之积是
,记动点M的轨迹为曲线E.过点
作直线l交曲线E于P,Q两点,且点P位于x轴上方.记直线
,
的斜率分别为
,
.
(1)证明:
为定值:
(2)设点Q关于x轴的对称点为
,求
面积的最大值.
![](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/ccc8350b12974ffc8d06fce36d158f02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a812a9b58ccba331cfd21d244329af01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07c2cc110e46ae4b3432814810e28bcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78fd95f89dec2d373fa57f02acd739f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ba2238d6afe0187534155dd9ac48c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e935bb9d7b7115429edbd1e7469af65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edc48974114e23f5a801843710c7ae21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67351fe10fcfc3f9072eec4c60bfaaa5.png)
(2)设点Q关于x轴的对称点为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86380a6d6501f6504dcb4aa5e3099f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c2cf4b11fe84c33c931919391e705c5.png)
您最近一年使用:0次
2022-05-25更新
|
734次组卷
|
3卷引用:广东省广州市番禺区2021-2022学年高二下学期期末数学试题
2022·全国·模拟预测
名校
解题方法
6 . 已知过椭圆
的左焦点
的直线与椭圆交于不同的两点
,
,与
轴交于点
,点
,
是线段
的三等分点,则该椭圆的标准方程是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e7422cbdb4ad06d155abb2ccdb25ded.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/d053b14c8588eee2acbbe44fc37a6886.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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-05-18更新
|
1769次组卷
|
8卷引用:广东省五校(华附,省实,深中,广雅,六中)2022-2023学年高二上学期期末联考数学试题
名校
解题方法
7 . 已知椭圆
:
的左、右焦点分别为
、
,点
为短轴的上端点,
,过
垂直于
轴的直线交椭圆
于
、
两点,
.
(1)求椭圆
的方程;
(2)设经过点
且不经过点
的直线
与
相交于
、
两点,若
、
分别为直线
、
的斜率,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70129ca7934f02b8236ad621bbbe906b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ff1c07d3ab5f594be5fffe13ebaaccb.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8833ba3833480237f47774984958c01d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.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/83042953e7f15e984b2da2ee9ca678d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67c015d99f2677951bdcd0447240ef93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69e3f7ddd51215d00661c09cd900d60.png)
您最近一年使用:0次
2022-04-17更新
|
555次组卷
|
4卷引用:广东省深圳市红岭中学2022-2023学年高二上学期期末数学试题
广东省深圳市红岭中学2022-2023学年高二上学期期末数学试题陕西省汉中市2022届高三下学期教学质量第二次检测考试文科数学试题内蒙古赤峰二中2021-2022学年高二下学期第一次月考数学(文)试题(已下线)回归教材重难点04 圆锥曲线-【查漏补缺】2022年高考数学(文)三轮冲刺过关
名校
8 . 若椭圆
的一个焦点为
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/223ed6c8eda383bca1463018c662e160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953bfeb398bab2b2ba61b3e6bf0a22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.5 | B.3 | C.4 | D.2 |
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2022-04-01更新
|
693次组卷
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6卷引用:广东省深圳市第七高级中学2021-2022学年高二上学期期末数学试题
名校
解题方法
9 . 已知椭圆
,其右焦点为
,点M在圆
上但不在
轴上,过点
作圆的切线交椭圆于
,
两点,当点
在
轴上时,
.
(1)求椭圆
的标准方程;
(2)当点
在圆上运动时,试探究
周长的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce176fdfbb44b8459f441a8d805013f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef74c4299221a967507c6a179337581a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49c7e3b6c9b4c7c09f0246a6e05c7e1b.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a9bf6bda9363dbef5f6ff4bf6a5edf.png)
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2022-03-30更新
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3299次组卷
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9卷引用:广东省揭阳市揭东区2022-2023学年高二上学期期末数学试题
广东省揭阳市揭东区2022-2023学年高二上学期期末数学试题广东省2022届高三一模数学试题广东省广州市番禺区2021-2022学年高二下学期期中数学试题(已下线)专题二十三 椭圆与方程(已下线)必刷卷03 (理)-2022年高考数学考前信息必刷卷(全国乙卷)新疆实验中学2022-2023学年高二上学期期中考试数学试题(已下线)专题38 圆锥曲线中的圆问题-1河北省2022届高考临考信息(预测演练)数学试题(已下线)广东省2022届高三一模数学试题变式题17-22
名校
10 . 已知曲线C的方程为
(
,且
,
),则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b265e2491352b760399617d9a28c49b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff8d9b6533ff319420cdc5e8740b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11a342e44715fc314362c4b57bac0a02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07cd47f99c660bb42ae69e011050d60c.png)
A.当![]() | B.若曲线C为椭圆,且焦距为![]() ![]() |
C.当![]() ![]() | D.当曲线C为双曲线时,焦距等于4 |
您最近一年使用:0次
2022-03-30更新
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765次组卷
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7卷引用:广东省汕尾市2021-2022学年高二上学期期末数学试题