1 . 已知平面内的定点
,
为坐标原点,
为平面内的动点,满足线段
的中点
在圆
上,点
在线段
上且
,当
运动时,点
形成的轨迹为曲线
.
(1)求曲线
的方程;
(2)若曲线
与
轴的左、右两个交点分别为
,过定点
的直线
与曲线
交于
两点,设直线
与
相交于点
,证明:点
在定直线上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0b6dc739c658f64d53dbfafe26a174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02f73c60dea26a43402b864aee856b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若曲线
![](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/6f44755c5fee4b90266eac73ad47a128.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3559164b258a74a3ed339317cd7a4a99.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/69df0d520f84f4c9dfdbe69074780757.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a36d874d5d8db342ad523c33d13b15e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77227d4d2b4a96829fd5ae1dd7cad688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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
2 . 已知椭圆
的离心率
,左右焦点分别为
,点
在椭圆S上,过
的直线l交椭圆S于A,B两点.
(1)求椭圆S标准方程;
(2)求
的面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c44d193d8ee5fbc1422fb1d4d804b48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075ba8c6fb5ef7288cd3fed425c8e69e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c38928a92bc4b44ed3c9b89769f5372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/228d8c7ca8a0153bb4e5f14bddcecfd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
(1)求椭圆S标准方程;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3c07ebcbfacda073208d483c58e8a84.png)
您最近一年使用:0次
2021-12-04更新
|
1017次组卷
|
9卷引用:重庆市第八中学校2021-2022学年高一(艺术班)下学期期末数学试题
重庆市第八中学校2021-2022学年高一(艺术班)下学期期末数学试题黑龙江省哈尔滨市第一中学校2021-2022学年高三上学期期末考试数学(文)试题 陕西省西安市八所重点中学2021-2022学年高三上学期联考 (一)文科数学试题陕西省西安市八所重点中学2021-2022学年高三上学期联考 (一)理科数学试题河南省驻马店市新蔡县第一高级中学2021-2022学年高二上学期12月半月考(理科)数学试题(已下线)专题3.15 圆锥曲线中的面积问题大题专项训练(30道)-2021-2022学年高二数学举一反三系列(人教A版2019选择性必修第一册)陕西省西安地区八校2022届高三下学期3月第一次联考文科数学试题陕西省西安地区八校2022届高三下学期3月第一次联考理科数学试题河南省驻马店市新蔡县第一高级中学2021-2022学年高二上学期12月月考(文科)数学试题
名校
解题方法
3 . 已知圆
:
,点
,
是圆上任意一点,线段
的垂直平分线交
于点
,当点
在圆上运动时,点
的轨迹为曲线
,直线
:
与
轴交于点
,与曲线
交于
,
两个相异点,且
.
(1)求曲线
的方程;
(2)是否存在实数
,使得
?若存在,求出
的取值范围,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/8846cac6c86faf42798805cca68f5211.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/595560bce2950948532924b17d0a5037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a253c7fdf589ee3dece13d5b5b5732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15b256345d7109e081b7c895591e995d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/c3435ee50a0bdb1e9e9c83fd812e6eec.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da1cab079df6fcb6cb21bf938b86361f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
解题方法
4 . 已知椭圆Γ:
的右焦点坐标为
,且长轴长为短轴长的
倍,直线l交Γ椭圆于不同的两点
和
,
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/3/e18109f4-146c-4674-b020-0ee3d1634bad.png?resizew=157)
(1)求椭圆Γ的方程;
(2)若直线l经过点
,且
的面积为
,求直线l的方程;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a812a9b58ccba331cfd21d244329af01.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/3/e18109f4-146c-4674-b020-0ee3d1634bad.png?resizew=157)
(1)求椭圆Γ的方程;
(2)若直线l经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/425ff352b0cf9389bbc2fb4538007066.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
您最近一年使用:0次
2021-02-06更新
|
149次组卷
|
2卷引用:江西省南昌市新建区第一中学2020-2021学年高一上学期期末考试数学(文)试题
名校
5 . 已知圆
和
,动圆M与圆
内切,与圆
外切,P是
的内心,且
,则a的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce38984e34f108b0e602dc5193f7726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66678576cdb93236aa2e373e2ea6984f.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/96d6c0b1e09f546c5ce77316daa8050f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54175dd25f813beb571846299a5a2326.png)
A.9 | B.11 | C.17 | D.19 |
您最近一年使用:0次
2021-02-05更新
|
696次组卷
|
6卷引用:【新东方】绍兴高中数学00037
(已下线)【新东方】绍兴高中数学00037浙江省绍兴市上虞区2020-2021学年高三上学期期末数学试题(已下线)押第11题 椭圆-备战2021年高考数学(文)临考题号押题(全国卷1)(已下线)考点24 直线与圆、圆与圆的位置关系-备战2022年高考数学(文)一轮复习考点微专题江苏省扬州中学2021-2022学年高二上学期10月月考数学试题四川省资阳市安岳县安岳中学2020-2021学年下学期高二数学(理)开学考试试卷(试点班)
6 . 在平面直角坐标系
中,已知椭圆
的四个顶点围成的四边形的面积为
,椭圆的左焦点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a45349f54f6abc8d331556557255f024.png)
![](https://img.xkw.com/dksih/QBM/2021/2/3/2650310066290688/2651388766789632/STEM/57d1f4d7646349e9b8f520c315651e03.png?resizew=185)
(1)求椭圆的方程;
(2)
,是否存在斜率为
的直线l与椭圆相交于两点M,N,且
,若存在,求出直线l的方程,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a45349f54f6abc8d331556557255f024.png)
![](https://img.xkw.com/dksih/QBM/2021/2/3/2650310066290688/2651388766789632/STEM/57d1f4d7646349e9b8f520c315651e03.png?resizew=185)
(1)求椭圆的方程;
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a9cb4b48bdfbb1aa677e5d8dcc7ad8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b485b62d004d52fb31d6ed99ccb7669.png)
您最近一年使用:0次
名校
7 . 如图,在棱长为1的正方体
中,点M是底面正方形
的中心,点P是底面
所在平面内的一个动点,且满足
,则动点P的轨迹为( )
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/3f7303b1-8451-446c-b1b9-27ff07641d96.png?resizew=180)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2877e19f77b5ade8bf1e80713c9ee34b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/3f7303b1-8451-446c-b1b9-27ff07641d96.png?resizew=180)
A.圆 | B.抛物线 | C.双曲线 | D.椭圆 |
您最近一年使用:0次
2021-01-31更新
|
833次组卷
|
6卷引用:【新东方】高中数学20210304-023
(已下线)【新东方】高中数学20210304-023(已下线)【新东方】绍兴高中数学00027浙江省宁波市九校2020-2021学年高二上学期期末联考数学试题浙江省湖州市德清县第三中学2020-2021学年高二下学期返校考试数学试题(已下线)专题06 椭圆性质综合归类-【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)(已下线)专题7-2求曲线方程和动点轨迹归类-2
8 . 已知椭圆的一个顶点为
,焦点在
轴上.若右焦点到直线
的距离为3.
(1)求椭圆的方程;
(2)求此椭圆的离心率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71885f023172807ad43f2c9a670aa960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f609ad1adce638dd864449f1c850cf0.png)
(1)求椭圆的方程;
(2)求此椭圆的离心率.
您最近一年使用:0次
2021-01-17更新
|
237次组卷
|
2卷引用:江苏省连云港市2021-2022学年高一上学期期末调研数学试题(5)
20-21高一·浙江·期末
解题方法
9 . 已知椭圆
,其长轴为4,短轴为2.
(1)求椭圆C的方程及离心率.
(2)直线l经过定点(1,0),且与椭圆C交于
两点,求
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
(1)求椭圆C的方程及离心率.
(2)直线l经过定点(1,0),且与椭圆C交于
![](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
解题方法
10 . 已知椭圆
过点
,焦距为2.
(1)求椭圆C的方程;
(2)过点
作两条直线
,
且
,
切椭圆C于M,
交椭圆C于A,B不同两点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe8530b8e246a9a5ec9fe3b9c347d5a.png)
(1)求椭圆C的方程;
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09514f4c8a9a7fa153b12a491294f45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ace585d3cc2e113a0927cdf9e56756a.png)
您最近一年使用:0次