名校
解题方法
1 . 已知椭圆
的左、右焦点分别为
,离心率为
,椭圆
的上顶点为
,且
,双曲线
和椭圆
有相同的焦点,且双曲线
的离心率为
,
为
与
的一个公共点.若
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd486b8796b3454eab219c28ed131683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10d6ff679f919710092a032c2e9f818a.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/a35b148c043ddff87cc37c8891138187.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.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/6681ba848304fe48791781a6d36cd3bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/7285470bf401f5edaac641234ee6ff6a.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2024-01-27更新
|
236次组卷
|
2卷引用:江西省南昌市第十九中学2022-2023学年高二上学期第一次月考数学试卷
名校
解题方法
2 . 已知椭圆C:
的离心率为
,短轴长为2.
(1)求椭圆C的方程;
(2)设O为坐标原点,F为椭圆C的右焦点,过F的直线l与C交于A,B两点,点M的坐标为
.求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆C的方程;
(2)设O为坐标原点,F为椭圆C的右焦点,过F的直线l与C交于A,B两点,点M的坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e57610afd116ab84660c807cc1aa3819.png)
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2023-08-17更新
|
1086次组卷
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6卷引用:江西省南昌市第十中学2022-2023学年高二上学期期中数学试题
江西省南昌市第十中学2022-2023学年高二上学期期中数学试题江西省九江市永修县第一中学2023-2024学年高二上学期10月月考数学试题江西省上饶市余干县蓝天中学2023-2024学年高二上学期期中考试数学试题(已下线)2.4.2直线与圆锥曲线的综合问题(分层练习)-2023-2024学年高二数学同步精品课堂(北师大版2019选择性必修第一册)北京市第十一中学2023-2024学年高二上学期期中练习数学试题(已下线)专题08 椭圆双曲线综合大题(9题型)-【巅峰课堂】2023-2024学年高二数学上学期期中期末复习讲练测(人教A版2019选择性必修第一册)
3 . 已知椭圆的离心率为
,焦点是
,则椭圆方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9cc6456181b91be35ace52bca6b87a6.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-08-09更新
|
403次组卷
|
2卷引用:江西省南昌市第一中学2022-2023学年高二上学期期中数学试题
解题方法
4 . 国家体育场(鸟巢),位于北京奥林匹克公园中心区南部,为2008年北京奥运会的主体育场,也是2022年北京冬季奥运会开幕式、闭幕式举办地.某近似鸟巢的金属模型,其俯视图可近似看成是两个大小不同、扁平程度相同的椭圆,已知小椭圆的短轴长为
,长轴长为
,大椭圆的短轴长为
,则大椭圆的长轴长为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/29/b1ff4269-8eca-4ac7-8152-2da4c4c9f4d0.jpg?resizew=132)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80b1fe1b971b780e443a9b13621611c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d19daa2b38e3a52bd7096d235c843110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d19daa2b38e3a52bd7096d235c843110.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/29/b1ff4269-8eca-4ac7-8152-2da4c4c9f4d0.jpg?resizew=132)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-04-26更新
|
305次组卷
|
2卷引用:江西省多所重点校2022-2023学年高二上学期12月统一调研数学试题
名校
解题方法
5 . 已知椭圆
:
的左、右焦点分别为
,
,过椭圆
上一点
和原点
作直线
交圆
:
于
,
两点,下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28a31a11044d169f3d6a892913b9dde.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/945066b2767be49535b0f9529649b834.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
A.椭圆![]() ![]() |
B.若![]() ![]() ![]() |
C.![]() ![]() |
D.若![]() ![]() |
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2023-04-26更新
|
659次组卷
|
4卷引用:江西省多所重点校2022-2023学年高二上学期12月统一调研数学试题
江西省多所重点校2022-2023学年高二上学期12月统一调研数学试题贵州省毕节市金沙县2022-2023学年高二上学期12月月考数学试题黑龙江省大庆市大庆中学2023届高三三模数学试题(已下线)江苏省南京市六校联合体2023-2024学年高三上学期11月期中数学试题变式题11-14
名校
6 . 我们通常称离心率为
的椭圆为“黄金椭圆”.如图,已知椭圆
,
,
,
,
为顶点,
,
为焦点,
为椭圆上异于
,
的一点,满足下列条件能使椭圆
为“黄金椭圆”的有( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/15/bd3da174-1f09-4117-a122-e0fa9f5fcf9c.png?resizew=218)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029d393bb07b7140905b85f550519de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.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/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.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/dad2a36927223bd70f426ba06aea4b45.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/15/bd3da174-1f09-4117-a122-e0fa9f5fcf9c.png?resizew=218)
A.![]() |
B.![]() |
C.![]() ![]() |
D.四边形![]() ![]() ![]() |
您最近一年使用:0次
2023-02-11更新
|
370次组卷
|
2卷引用:江西省南昌市南昌县莲塘第一中学2022-2023学年高二上学期期中考试数学试题
名校
解题方法
7 . 已知椭圆
的焦点为
,
.过
且倾斜角为
的直线交椭圆的上半部分于点
,以
,
为坐标原点)为邻边作平行四边形
,点
恰好也在椭圆上,则离心率![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ce2b47812fce4b17fd813d0e4cce21.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e4e568d9cd57c442f011a787ab8aaf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914c2124260496e9307d6448c0c943f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f80ecb6b5d5eca464b3f099513c08fc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d18b3f300183545d3aeae612e354c26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f64e5012edae761165b1a7fc616afaf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ce2b47812fce4b17fd813d0e4cce21.png)
您最近一年使用:0次
解题方法
8 . 已知曲线C:
下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1542c48f287494f0c5f70a5c9eb6bfd.png)
A.若![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
9 . 将一线段按如下比例分割:较长这段长与总长的比值等于较短这段长与较长这段长的比值,则该比值为
,约为
,这个分割比例被公认为是最能引起美感的比例,因此被称为黄金分割比.我们将离心率为
的椭圆称为“黄金椭圆”
已知椭圆
:
,其离心率
,则满足下列条件能使椭圆
为“黄金椭圆”的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029d393bb07b7140905b85f550519de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8664a837eed36c57a7af7ce08bf47a4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029d393bb07b7140905b85f550519de4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d3ab81f15fc605429b3de9854f7a8d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-01-09更新
|
216次组卷
|
3卷引用:江西省萍乡市安源区2022-2023学年高二上学期期中数学试题
解题方法
10 . 阿基米德在他的著作《关于圆锥体和球体》中计算了一个椭圆的面积.当我们垂直地缩小一个圆时,我们得到一个椭圆,椭圆的面积等于圆周率
与椭圆的长半轴长与短半轴长的乘积,已知椭圆
的面积为
,两个焦点分别为
,
,点P为椭圆C的上顶点,点Q为椭圆C上的动点,直线
与椭圆C交于A,B两点,若
的斜率之积为
,则椭圆C 中( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed2d1ecae9c649cc3c89f9ce0c063208.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c99bd2248dbc7a95a6f81e01ce88a727.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/ac02a054bd0771a56987af33454baaea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b889efe020137b112bfafaa8e0becda4.png)
A.短轴长为4 | B.渐近线方程为![]() |
C.点Q在两处![]() | D.离心率为![]() |
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