名校
1 . 已知椭圆
,过椭圆左焦点F的直线
与椭圆C在第一象限交于点M,三角形MFO的面积为
.
(1)求椭圆C的标准方程;
(2)过点M作直线l垂直于x轴,直线MA、MB交椭圆分别于A、B两点,且两直线关于直线l对称,求证∶直线AB的斜率为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0717cf6826af5a27b5956f3b2943168f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802e162b98c280720fcb909cf392fda3.png)
(1)求椭圆C的标准方程;
(2)过点M作直线l垂直于x轴,直线MA、MB交椭圆分别于A、B两点,且两直线关于直线l对称,求证∶直线AB的斜率为定值.
您最近一年使用:0次
2021-02-28更新
|
1317次组卷
|
3卷引用:安徽省安庆市2021届高三下学期一模理科数学试题
名校
解题方法
2 . 已知椭圆的长轴长是
,焦点坐标分别是
,
.
(1)求这个椭圆的标准方程;
(2)如果直线
与这个椭圆交于
、
两不同的点,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b36a0866ec5fbb94e6cf4d61579e0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb374fd349306abf2f784b6a28d93a7.png)
(1)求这个椭圆的标准方程;
(2)如果直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54479885d4ab2f717d2e97718da04b43.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/6d5e7950cb578a90c5670918caab8638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2021-02-28更新
|
292次组卷
|
3卷引用:安徽省宿州市泗县第一中学2020-2021学年高二下学期开学考试数学(理)试题
安徽省宿州市泗县第一中学2020-2021学年高二下学期开学考试数学(理)试题(已下线)3.1.2 椭圆的简单几何性质(精讲)-2021-2022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)湖南省邵阳市邵东市第四中学2022-2023学年高二上学期期中数学试题
名校
解题方法
3 . 已知椭圆的中心在坐标原点O,焦点在x轴上,短轴长为2,且两个焦点和短轴的两个端点恰为一个正方形的顶点.过右焦点F与x轴不垂直的直线l交椭圆于P,Q两点.
(1)求椭圆的方程;
(2)当直线l的斜率为2时,求
的面积;
(3)在线段OF上是否存在点M(m,0),使得
为等腰三角形?若存在,求出m的取值范围;若不存在,请说明理由.
(1)求椭圆的方程;
(2)当直线l的斜率为2时,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fdc02f00cf00a6dfd88b53a90f1f7a4.png)
(3)在线段OF上是否存在点M(m,0),使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a9dabb53dc826019fc8b6ae6d940c5.png)
您最近一年使用:0次
2021-02-27更新
|
284次组卷
|
2卷引用:安徽省芜湖市2020-2021学年高二上学期期末理科数学试题
名校
解题方法
4 . 已知椭圆
的离心率是
点
是椭圆
的左焦点,点
为椭圆
的右顶点,点
为椭圆
的上顶点,且
.
(1)求椭圆
的方程;
(2)设点
为椭圆
长轴上的一个动点,过点
作斜率为
的直线
交椭圆
于
两点,证明
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b539461f24fa61751b7e6ac653aaad5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f2bdc98bf070c01e8f10bc9219dd1ce.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84bfec4efcc9f0e656d6864daaaef55d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c6ce02259a85ea191541f4a708738f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fe7fd9b0c3c203a053a7ea52b71e7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a4b5eba9eb161229a3ead25f43c48d2.png)
您最近一年使用:0次
2021-02-24更新
|
1076次组卷
|
5卷引用:安徽省皖江名校联盟2021届高三下学期2月开年考文科数学试题
安徽省皖江名校联盟2021届高三下学期2月开年考文科数学试题(已下线)精做05 解析几何-备战2021年高考数学大题精做(新高考专用)湖南省长沙市第一中学2021届高三下学期英才大联考数学试题湖南省长沙市第一中学2021届高三下学期月考(八)数学试题湖南省长沙一中2021届高三4月高考数学模拟试题
名校
解题方法
5 . 已知椭圆
过点
,
.
(1)求
的方程;
(2)经过
,且斜率为
的直线
交椭圆
于
、
两点(均异于点
),证明:直线
与
的斜率之和为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c45aa25c615844c5b3d49b4ed4a5e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3544997cc034ed882c0d0a3bdbf5f957.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)经过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a979a45bc5debf695297933b6fdf8a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
您最近一年使用:0次
2021-02-07更新
|
863次组卷
|
7卷引用:安徽省马鞍山市第二中学郑蒲港分校2020-2021学年高二下学期入学摸底测试文科数学试题
安徽省马鞍山市第二中学郑蒲港分校2020-2021学年高二下学期入学摸底测试文科数学试题山西省吕梁市2021届高三上学期第一次模拟数学(理)试题(已下线) 专题22 圆锥曲线的“三定”与探索性问题(练)-2021年高三数学二轮复习讲练测(新高考版)(已下线)专题26 圆锥曲线的“三定”与探索性问题(练)-2021年高三数学二轮复习讲练测( 文理通用)宁夏六盘山市高级中学2021届高三下学期一模数学(文)试题陕西省宝鸡市渭滨区2021届高三下学期适应性训练(一)文科数学试题河南省中原名校联盟2021-2022学年高三下学期4月适应性联考文科数学试题
名校
解题方法
6 . 已知椭圆
的左右顶点分别为
,椭圆
上不同于
的任意一点
,直线
和
的斜率之积为
.
![](https://img.xkw.com/dksih/QBM/2021/2/4/2650929514004480/2652141023166464/STEM/433921c5-bd52-4b97-ae99-dd5319ffb5ad.png?resizew=260)
(1)求椭圆
的标准方程;
(2)过椭圆内一点
,作一条不垂直于
轴的直线交椭圆于
两点,点
和点
关于
轴对称,直线
交
轴于点
,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7d72a07a4e5acfc140a3cea1f26b951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/728b3360d5c6394457b907f1cbc31a18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/800c5e266b4ad8462a46970f0a232d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46b053f98b1d05a2043e94eeaefea87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d78fd95f89dec2d373fa57f02acd739f.png)
![](https://img.xkw.com/dksih/QBM/2021/2/4/2650929514004480/2652141023166464/STEM/433921c5-bd52-4b97-ae99-dd5319ffb5ad.png?resizew=260)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过椭圆内一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a758f5f679810a247319fa8162c113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432aae51854129e8c10f7c34c0c3a79f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb74ca8fc86ddef279e33f31c1fedda.png)
您最近一年使用:0次
2021-02-06更新
|
402次组卷
|
4卷引用:安徽省宣城市第二中学2020-2021学年高二下学期第一次月考理科数学试题
解题方法
7 . 已知椭圆
的离心率为
右焦点到左顶点的距离是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b567ee766908d361a507de505a4bf5fd.png)
(1)求椭圆C的方程;
(2)设点M为椭圆上位于第一象限内一动点,A,B分别为椭圆的左顶点和下顶点,直线MB与x轴交于点C,直线MA与y轴交于点D,求证:四边形ABCD的面积为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c43c8e06052e905ee69e62ce8be4af88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b567ee766908d361a507de505a4bf5fd.png)
(1)求椭圆C的方程;
(2)设点M为椭圆上位于第一象限内一动点,A,B分别为椭圆的左顶点和下顶点,直线MB与x轴交于点C,直线MA与y轴交于点D,求证:四边形ABCD的面积为定值.
您最近一年使用:0次
2021-02-05更新
|
313次组卷
|
4卷引用:安徽省亳州市涡阳县育萃高级中学2020-2021学年高二下学期第一次月考数学(理)试题
安徽省亳州市涡阳县育萃高级中学2020-2021学年高二下学期第一次月考数学(理)试题云南省玉溪市2020-2021学年高二年级上学期期末数学(理)试题云南省玉溪市2020-2021学年高二年级上学期期末数学(文)试题(已下线)大题专练训练22:圆锥曲线(椭圆:定值定点问题2)-2021届高三数学二轮复习
解题方法
8 . 已知椭圆
过点
,离心率为
.
![](https://img.xkw.com/dksih/QBM/2021/2/2/2649645685727232/2651332502380544/STEM/4e599c4e-3893-4df2-a13d-0b34933bbbd4.png)
(1)求椭圆
的方程;
(2)直线
与圆
相切,且与椭圆
交于
,
两点,
为椭圆
上一个动点(点
,
分别位于直线
两侧),求四边形
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef6b94e42869013745050aba059b58dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c962bef7513d00be92517759da194559.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe2c533dbc23a34518f72f3cb14f330.png)
![](https://img.xkw.com/dksih/QBM/2021/2/2/2649645685727232/2651332502380544/STEM/4e599c4e-3893-4df2-a13d-0b34933bbbd4.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/560adea7b0d4fbe4131fc41f3fcbd871.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe3174b77e624cd0fdb730bbe00322f.png)
您最近一年使用:0次
解题方法
9 . 已知椭圆
的左、右焦点分别是
,过点
的直线
与椭圆相交于
两点,且
的周长为
.
(1)求椭圆
的标准方程;
(2)在椭圆中有这样一个结论“已知
在椭圆
外 ,过
作椭圆的两条切线,切点分别为
,则直线
的方程为
”.现已知
是圆
上的任意点,
分别与椭圆
相切于
,求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f49644cd9fa4688cc3a74a234952530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5eb2485f90dbfd0dfd6e7d179a856f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)在椭圆中有这样一个结论“已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4127b796482b8d004203662147aac499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9f50605db5d5f8f3a01ee8e474a112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5425108c557f0f21474c045334f97d9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4a949c00526fddf435423272cf10f25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a9656735f55e5de465e5667ba578d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49137970108f50350a3211aa0281faaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03df57efff473b3cfeb8503796b7d6b6.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/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
您最近一年使用:0次
10 . 已知命题
对
恒成立,命题
方程
表示的曲线为焦点在
轴上的椭圆,且
为真命题,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb4a793681a64af1f894584f677b445.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aac2759c82d304966e0de7237dd8e331.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次