名校
解题方法
1 . 已知椭圆
的两焦点为
,
,点
在椭圆
上,且
的面积最大值为
.
(Ⅰ)求椭圆
的标准方程;
(Ⅱ)点
为椭圆
的右顶点,若不平行于坐标轴的直线
与椭圆
相交于
两点(
均不是椭圆
的右顶点),且满足
,求证:直线
过定点,并求出该定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9bece414af7ecb2d796dc8a6f549e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e62a44b8712ce4483b8710cda0dc1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de7af3d5765382269f380d39b0ffc9d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2021-03-24更新
|
713次组卷
|
2卷引用:河南省2020-2021学年高二年级阶段性测试文科(三)数学试题
名校
解题方法
2 . 已知椭圆
的左、右焦点分别为
,
,
,且
.
(1)求
的方程.
(2)若
,
为
上的两个动点,过
且垂直
轴的直线平分
,证明:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.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/1d4f7e7f33963df24d6a46067b4677e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4037561c629fd07503c6803e1eb62fb6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](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/c5db41a1f31d6baee7c69990811edb9f.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/efdd3eb5166d30689e3caccb1091a72b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2020-12-30更新
|
1075次组卷
|
18卷引用:河南省南阳市2020-2021学年高二上学期12月月考数学(文)试题
河南省南阳市2020-2021学年高二上学期12月月考数学(文)试题河南省南阳市2020-2021学年高二上学期12月月考数学(理)试题辽宁省辽阳市2020-2021学年高二上学期期末数学试题安徽省皖西南联盟2020-2021学年高二上学期期末文科数学试题安徽省皖西南联盟2020-2021学年高二上学期期末理科数学试题陕西省汉中市2020-2021学年高二上学期期末理科数学试题陕西省汉中市2020-2021学年高二上学期期末文科数学试题吉林省白山市2020-2021学年高二上学期期末考试数学(理科)试题江西省抚州市2020-2021学年度高二上学期期末(B卷)数学(文)试题江西省抚州市2020-2021学年度高二上学期期末(B卷)数学(理)试题福建省厦门市2021届高三下学期第一次质量检测数学试题广东省梅州市蕉岭中学等三校2020-2021学年高二下学期联考数学试题广东省深圳市第七高级中学2022届高三上学期第一次月考数学试题河北省沧州市第一中学2022届高三上学期12月月考数学试题陕西省西安市2020-2021学年高二上学期期末文科数学试题福建省泉州市惠安一中、养正中学、安溪一中、养正中学、泉州实验中学2020-2021学年高二下学期期末联考数学试题陕西省洛南中学2022-2023学年高二上学期期末数学(理)试题浙江省舟山中学2023-2024学年高二上学期第一次素养测评数学试题
3 . 已知椭圆
,以抛物线
的焦点为椭圆E的一个顶点,且离心率为
.
(1)求椭圆E的方程;
(2)若直线
与椭圆E相交于A、B两点,与直线
相交于Q点,P是椭圆E上一点,且满足
(其中O为坐标原点),试问在x轴上是否存在一点T,使得
为定值?若存在,求出点T的坐标及
的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/691144a76735cd54174c73f6b0af371d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/839b8de04116aaaed4f4cca2e107cd36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆E的方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/becdcb8a871e8965853acf0687034c28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a089c207e39a24d0d82aa853ac2bbb8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cff51d38fdcb552216b2ef94fa75be39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d8f74d548a017d78542283f4c91b93f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d8f74d548a017d78542283f4c91b93f.png)
您最近一年使用:0次
2020-11-02更新
|
1905次组卷
|
6卷引用:贵州省遵义市2021届高三上学期第一次联考理科数学试题
4 . 已知椭圆
的离心率为
,且以椭圆上的点和长轴两端点为顶点的三角形的面积的最大值为
.
(1)求椭圆
的方程;
(2)经过定点
的直线
交椭圆
于不同的两点
、
,点
关于
轴的对称点为
,试证明:直线
与
轴的交点
为一个定点,且
(
为原点).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)经过定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94b0388b9525e48e858c1f660601b874.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da895d8bd043625a0839128252130d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94e8ac27d63ade4077fdcf7cf136cf71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f7090ac415e355ae907be6182180074.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
您最近一年使用:0次
2020-06-01更新
|
287次组卷
|
2卷引用:2020届河北省保定市高三第二次模拟数学(理)试题
名校
解题方法
5 . 已知椭圆
的右焦点为F.
(1)求点F的坐标和椭圆C的离心率;
(2)直线
过点F,且与椭圆C交于P,Q两点,如果点P关于x轴的对称点为
,判断直线
是否经过x轴上的定点,如果经过,求出该定点坐标;如果不经过,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60652979ef1386b1d170bf48671d04f0.png)
(1)求点F的坐标和椭圆C的离心率;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/becdcb8a871e8965853acf0687034c28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86076e60d1727a012a0eab695dd6914f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99e92a32f3801f03ed5478d9497a86ea.png)
您最近一年使用:0次
2020-05-08更新
|
548次组卷
|
4卷引用:2020届北京市东城区高三高考第一次模拟(4月份)数学试题
名校
6 . 椭圆
:
的左、右焦点分别是
,
,离心率为
,左、右顶点分别为
,
.过
且垂直于
轴的直线被椭圆
截得的线段长为1.
(1)求椭圆
的标准方程;
(2)经过点
的直线与椭圆
相交于不同的两点
、
(不与点
、
重合),直线
与直线
相交于点
,求证:
、
、
三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5a9db3b2fef0dec32665bd83885fd58.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/860884c0017c8bceb5b0edff796c144f.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
(2)经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e9b5e076078240e0c5ad9763a9824d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91edc7e2d4811f5ea6c01284cf00393a.png)
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
2020-04-22更新
|
297次组卷
|
2卷引用:2020届内蒙古呼伦贝尔市海拉尔区高三第一次统考文科数学试题
名校
解题方法
7 . 设过定点
的直线
与椭圆
:
交于不同的两点
,
,若原点
在以
为直径的圆的外部,则直线
的斜率
的取值范围为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b25ce60648ea5042ab5eb5702efe651a.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/271e595c257e4c0ade90a9bbbf0e6b0d.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2020-04-07更新
|
1092次组卷
|
4卷引用:2020届全国大联考高三第六次联考文科数学试题
解题方法
8 . 已知椭圆
(
)的离心率为
,左、右焦点分别为
、
,
为椭圆的下顶点,
交椭圆于另一点
、
的面积
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/b17dd0d8-a365-4b9a-837a-6212d778262c.png?resizew=165)
(1)求椭圆的方程;
(2)过点
作直线
交椭圆于
、
两点,点
关于
轴的对称点为
,问:直线
是否过定点?若是,请求出定点的坐标;若不是,请说明理由.
![](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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b67528f875a6d4bac8bbf784f7b66a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ea349843c7e14e655a0d950bbf9094.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/292b791c7cf21c172e6e7f97f04be176.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/b17dd0d8-a365-4b9a-837a-6212d778262c.png?resizew=165)
(1)求椭圆的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c153027427477bcd0a7228b14ce96cc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b470c4e195cf7a07b7a331ce4b436e03.png)
您最近一年使用:0次
名校
解题方法
9 . 已知椭圆E:
经过点
,且离心率
.
(1)求椭圆E的方程;
(2)设椭圆E的右顶点为A,若直线
与椭圆E相交于M、N两点(异于A点),且满足
,试证明直线l经过定点,并求出该定点的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/948261c41cc1509f023761d880c75582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de261e9b4defbc0be6440397031a87b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c7316976a221c051a2c14df80b1347.png)
(1)求椭圆E的方程;
(2)设椭圆E的右顶点为A,若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3342ceb71dc21a5e6150caad2ce0b029.png)
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2020-07-11更新
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522次组卷
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4卷引用:2019届江苏省徐州市第一中学高三下学期开学考试数学试题
2019届江苏省徐州市第一中学高三下学期开学考试数学试题江西省南昌市第十中学2019-2020学年高二5月摸底考试数学试题天津市滨海新区大港一中2021届高三(上)第一次月考数学试题(已下线)2020年高考全国1数学理高考真题变式题16-20题
解题方法
10 . 已知椭圆
的离心率为
,经过点
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/5ba3baea-17ee-436d-925b-c11262fc6c18.png?resizew=228)
(1)求椭圆C的标准方程;
(2)已知A,B是椭圆C的长轴左右顶点,P,Q是椭圆C上的两点,记直线AP的斜率为
,直线BQ的斜率为
,若
,试判断直线PQ是否恒过定点?若是,求出定点的坐标,若不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28c1c99171ae3215a2e99a5deb287798.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/2/5ba3baea-17ee-436d-925b-c11262fc6c18.png?resizew=228)
(1)求椭圆C的标准方程;
(2)已知A,B是椭圆C的长轴左右顶点,P,Q是椭圆C上的两点,记直线AP的斜率为
![](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/6c3071b3b063a35df2196580f20315ba.png)
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