名校
解题方法
1 . 已知椭圆C:
(
)右焦点为
,
为椭圆的上顶点,O为坐标原点,
且
的周长为
.P是椭圆上一动点,M是直线
上一点,且直线
轴.
(1)求椭圆C的方程:
(2)记直线
与椭圆另一交点为Q,直线
是否过x轴上一定点?若是,求出该定点:若否,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/24550b13dbecf7d86c7054250e987274.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48c09615735d331befd07664aa47cb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f57ba13582b3111dc65e20e2462ce389.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac0b5d17fa816eaccc1bac76e03180e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f2c06207565e9fa6a288a788e4ab2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0460f1eb55926472115811f0a3e86598.png)
(1)求椭圆C的方程:
(2)记直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db8305c4ffbf876642440c3d28e91e9f.png)
您最近一年使用:0次
2022-07-06更新
|
976次组卷
|
3卷引用:北京市十一学校2021-2022学年高二下学期期末考试数学试题
北京市十一学校2021-2022学年高二下学期期末考试数学试题重庆市部分学校2023-2024学年高二上学期期中数学试题(已下线)第09讲 高考难点突破一:圆锥曲线的综合问题(定点问题) (精讲)-1
2 . 已知椭圆C:
(
)的右顶点为
,且
为其上一点.
(1)求椭圆C的方程及离心率;
(2)B是椭圆C上异于左右顶点的一点,线段
的中垂线交y轴于点D,且
为等边三角形,求B点横坐标.
![](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/888a6b10db4d81e5d2ba969fb576bd78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c8d39cf1f470cb74b6deb54deba7030.png)
(1)求椭圆C的方程及离心率;
(2)B是椭圆C上异于左右顶点的一点,线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
您最近一年使用:0次
名校
解题方法
3 . 已知椭圆
:
的左,右顶点分别为
,
,
,点
是椭圆
上一动点(不与点
,
不重合),
的面积的最大值为
.过点
作
的垂线
,交直线
于点
.
(1)求椭圆
的方程;
(2)求证:
,
,
三点在同一条直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.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/04be58ea6ca37a850422631eb3e994d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.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/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db87efc5f2a19615e007277e32aa543.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
您最近一年使用:0次
名校
解题方法
4 . 已知椭圆
的短半轴长等于
,离心率
.
(1)求椭圆C的标准方程;
(2)过右焦点F作斜率为k的直线l,与椭圆C交于A,B两点,线段
的垂直平分线交x轴于点P,判断
是否为定值,若是定值,求出该定值,若不是定值,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c7316976a221c051a2c14df80b1347.png)
(1)求椭圆C的标准方程;
(2)过右焦点F作斜率为k的直线l,与椭圆C交于A,B两点,线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98e4266abaffd5c18b53b4467c773cc7.png)
您最近一年使用:0次
2022-06-12更新
|
435次组卷
|
2卷引用:北京第十二中学2021-2022学年高二6月份阶段性测试数学试题
名校
解题方法
5 . 已知椭圆
过点
,离心率为
.
(1)求椭圆M的方程;
(2)已知直线
在x轴上方交椭圆M于B,C(异于点A)两个不同的点,直线AB,AC分别与y轴交于点P、Q,O为坐标原点,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36c6162828793e697cb1ad643b287c4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d295a4cc3a58f9f38ee98337313c81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(1)求椭圆M的方程;
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03d7391b1f33d9b3c52665e035d29a1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cfd89dc66a73b5b1ae25c4db1c6fb04.png)
您最近一年使用:0次
2022-06-02更新
|
919次组卷
|
7卷引用:北京十二中2021-2022学年高二下学期期末练习数学试题
名校
解题方法
6 . 已知椭圆C:
(a>b>0)上一点P到两个焦点的距离之和为4,离心率为
.
(1)求椭圆C的方程;
(2)设椭圆C的左右顶点分别为A、B,当P不与A、B重合时,直线AP, BP分别交直线x=4于点M、N,证明:以MN为直径的圆过右焦点F .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆C的方程;
(2)设椭圆C的左右顶点分别为A、B,当P不与A、B重合时,直线AP, BP分别交直线x=4于点M、N,证明:以MN为直径的圆过右焦点F .
您最近一年使用:0次
2022-05-26更新
|
672次组卷
|
4卷引用:北京市怀柔区第一中学2022-2023学年高二上学期12月月考数学试题
7 . 已知椭圆
的左右顶点
的坐标分别为
且椭圆E的离心率为
.
(1)求椭圆E的方程;
(2)过点
作直线l交椭圆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:
;
②设点Q关于x轴的对称点为
,求证直线
过x轴上一个定点,并求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0586ffe4bc516265086c6b5eafd1eed7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
(1)求椭圆E的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ba2238d6afe0187534155dd9ac48c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e990f8a065b517a4353903abe94ef4df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
①证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c80b04ce48c9ace43276552c77108126.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/df356846992174e641898c61380af591.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c2cf4b11fe84c33c931919391e705c5.png)
您最近一年使用:0次
名校
解题方法
8 . 已知椭圆
的短轴长等于
,离心率
.
(1)求椭圆C的标准方程;
(2)过右焦点F作斜率为k的直线l,与椭圆C交于A,B两点,线段
的垂直平分线交x轴于点P,判断
是否为定值.若是定值,求出该定值,若不是定值,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c7316976a221c051a2c14df80b1347.png)
(1)求椭圆C的标准方程;
(2)过右焦点F作斜率为k的直线l,与椭圆C交于A,B两点,线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/252531955c6872a2764fbeea4ec8a557.png)
您最近一年使用:0次
9 . 已知椭圆C:
的离心率为
,左、右焦点分别为
,
,A为C的上顶点,且
的周长为
.
(1)求椭圆C的方程;
(2)直线l:
与椭圆C交于M,N两点,O为坐标原点,当k为何值,
恒为定值,并求此时
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.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/b2cfd997d3b66a3b8f7731b26f0ab0c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bb8fb6f3d7540831a9e97d3b184a491.png)
(1)求椭圆C的方程;
(2)直线l:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80aeea2f19e6a5b1ee6e7b5be82713ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffd2e3363992060c0b8785f031d2877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4f02028a3847c4807c2d3cf0ea7efb8.png)
您最近一年使用:0次
2022-05-09更新
|
1304次组卷
|
7卷引用:北京市第二中学2021-2022学年高二下学期数学期末练习试题
名校
解题方法
10 . 已知椭圆
:
的
,
满足
,过点
.
(1)求椭圆
的标准方程;
(2)过点
的直线
与椭圆
交于
,
两点(不与
重合).直线
的斜率为
,直线
的斜率为
,判断
与
是否为定值?若为定值,请说明理由.
![](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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4037561c629fd07503c6803e1eb62fb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dec3fdb2722c0bcac5303546e87152a0.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9380191d5128132ab5995d3f048d3539.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b69e3f7ddd51215d00661c09cd900d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4757181824e15e0f21e5bdd55448783.png)
您最近一年使用:0次