1 . 设椭圆
过点
,
两点,
为坐标原点.
(1)求椭圆
的标准方程;
(2)是否存在圆心为原点的圆,使得该圆的任意一条切线与椭圆
恒有两个交点
,
,且
?若存在,写出该圆的方程,并求
的取值范围,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a200ca2c4af794f4d1c6a5443830b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52ad4a60e2b50a820ec2044aa55f2472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17bb6c058ffb1b86b215a582e98e663.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)是否存在圆心为原点的圆,使得该圆的任意一条切线与椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/dc4876efa91f38d11ce12fed2e1fbf2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
您最近一年使用:0次
名校
解题方法
2 . 已知椭圆
的中心为坐标原点,对称轴为
轴,
轴,且过
两点.
(1)求椭圆
的方程;
(2)是否存在直线
,使得直线
与圆
相切,与椭圆
交于
两点,且满足
(
为坐标原点)?若存在,请求出直线
的方程,若不存在,请说明理由.
![](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/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c36e092b08bfdc9938ceaa68bbeacd.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)是否存在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.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/cc11e7549cfce9220e70250ac943e457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2023-05-19更新
|
509次组卷
|
8卷引用:甘肃省金昌市2023届高三二模数学(文)试题
解题方法
3 . 已知椭圆
过点
,其右顶点为
,下顶点为
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/20/4cb3c970-d613-4738-9e36-cd4c6635f0a7.png?resizew=190)
(1)求椭圆
的标准方程;
(2)直线
(斜率存在)与椭圆
交于
两点,
点在直线
上方,
点在直线
下方,
上有点
,
轴,线段
被
平分,点
到直线
的距离为
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ef233ad3db01fa3ce9ee94eaad8e64e.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/fd3287fe7ab879d8756115a5d4d22d8f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/20/4cb3c970-d613-4738-9e36-cd4c6635f0a7.png?resizew=190)
(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/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba90284a0b1b1fcd062abdf7f2eec138.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce2790947716b1cfa9c5e7a65db4093.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c35bf8c29fc8004451de66e12b4de9fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
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名校
解题方法
4 . 已知椭圆
过点
,且离心率为
.
(1)求椭圆C的标准方程;
(2)若直线
与椭圆C交y轴右侧于不同的两点A,B,试问:
的内心是否在一条定直线上?若是,请求出该直线方程;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cba824597ac1256ef641fb87346dda6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d307161f8f5b4353f267bf398caef8f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆C的标准方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d00a5df9d281dd4e1e45bf6a4d6fb27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a11cb104b04c4e6a1be700e81da279a.png)
您最近一年使用:0次
2023-05-19更新
|
593次组卷
|
4卷引用:河南省新未来2023届高三5月联考文科数学试题
名校
解题方法
5 . 已知椭圆
:
的左、右顶点分别为
,
,M是椭圆R上异于A,B的一点,且直线MA与直线MB的斜率之积满足
.
(1)求椭圆R的标准方程;
(2)过点
的直线交椭圆于C,D两点,且直线AC,BD交于点Q,求点Q的横坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/913f78382630e50543e5f7192cae3ed3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c850811ba59a05e945a665196539a048.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1658e5d429f07818fe38e4fb0b43bf3a.png)
(1)求椭圆R的标准方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
您最近一年使用:0次
2023-05-19更新
|
506次组卷
|
5卷引用:河南省青桐鸣大联考2023届高三下学期5月考试文科数学试题
名校
解题方法
6 . 已知椭圆C:
过点A(2,
),且C的离心率为
.
(1)求C的方程;
(2)设直线l交C于不同于点A的M,N两点,直线AM,AN的倾斜角分别为
,
,若
,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求C的方程;
(2)设直线l交C于不同于点A的M,N两点,直线AM,AN的倾斜角分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4920335b6578fa04bb0a13e405a1ee99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98013a5042685a1db94249e70c62c09a.png)
您最近一年使用:0次
2023-05-12更新
|
466次组卷
|
3卷引用:山西省名校联盟2023届高三5月仿真模拟数学试题
解题方法
7 . 已知椭圆
过点
,且离心率为
.
(1)求椭圆
的方程;
(2)过点
的直线
交
于
、
两点时,在线段
上取点
,满足
,证明:点
总在某定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03efa0031095d2186f68e407859eb37d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530e5817131adf2c05b99ff18eb9060f.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/20260f638a21ecaf64ed9a78cab5e830.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
解题方法
8 . 已知椭圆
的右焦点为
,且
是椭圆
上一点.
(1)求椭圆
的方程;
(2)若过
且斜率不为0的直线
与椭圆
相交于
两点,若
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be92f0e0012a7696c78e3e00513edefd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dc486cdfb2ad3d27d8f2672a5f2f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f5090d910284f5b66a70364a675e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2023-05-09更新
|
388次组卷
|
2卷引用:河南省豫南名校毕业班2023届高三仿真测试三模文科数学试题
解题方法
9 . 已知椭圆
的焦距为2,且经过点
.
(1)求椭圆C的方程;
(2)若椭圆C内接四边形MNQP的对角线交于点
,满足
,试问:直线MN的斜率是否为定值?若是,求出这个定值;若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb0d12a68c7e548f47e31f634047f768.png)
(1)求椭圆C的方程;
(2)若椭圆C内接四边形MNQP的对角线交于点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29f4b2e47f04efd6b39e2ec12b3ca7de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9016590c2920d988a3c3d8b9b0dc6822.png)
您最近一年使用:0次
解题方法
10 . 已知椭圆
的右焦点为
,并且经过点
.
(1)求C的方程;
(2)过F的直线交C于
,交直线
于点N,记
的斜率分别为
,
,
,探索三个数
,
,
是否成等差数列,并证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62d314b47d37c9f58e05ad11f3e68e27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/182c81fb1c5e6d1a57a5f34a31ee69a9.png)
(1)求C的方程;
(2)过F的直线交C于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c778e409fe63e187a09444bc888e8f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c420b51aafa5a1be365a2cf4e79592c.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/dbf434334b09cc0fdd4e86e84e6ceb00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e769e2c4c658c63e429e5a8926666504.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5bca1c889e83e1086ea87f868e540af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e14f628b1103d160c21b94bfcb55ae46.png)
您最近一年使用:0次