1 . 在平面直角坐标系
中,点
,
的坐标分别为
和
,设
的面积为
,内切圆半径为
,当
时,记顶点
的轨迹为曲线
.
(1)求
的方程;
(2)已知点
,
,
,
在
上,且直线
与
相交于点
,记
,
的斜率分别为
,
.
(i) 设
的中点为
,
的中点为
,证明:存在唯一常数
,使得当
时,
;
(ii) 若
,当
最大时,求四边形
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.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/ab1242ec96ac54e2fd418988d5190a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953bfeb398bab2b2ba61b3e6bf0a22e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a5e0a51c9e14fb246b0ba0b231c1e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b722e2e83c2d125453ee2d80a5e64d26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
(i) 设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f132407bf1cc9d1f460d50f1b0547993.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b3fa41635da8da11d6c04287ff7513.png)
(ii) 若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/129fa211eb0cfb3968d38c3c90249842.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb13513559d5e8595656b898584dcdd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebcad0585886e2d7bac28a0e292a1d37.png)
您最近一年使用:0次
2024-01-02更新
|
1186次组卷
|
5卷引用:上海市浦东新区上海实验学校2024届高三下学期开学考试数学试题
2023·全国·模拟预测
名校
解题方法
2 . 已知椭圆C:
的两焦点分别为
,并且经过点
.
(1)求椭圆C的方程;
(2)过
的直线交椭圆C于A,B两点,设直线
与C的另一个交点分别为M,N,记直线AB,MN的倾斜角分别为
,当
取得最大值时,求直线AB的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5439f5ff9bd5deec0f0ef35c6f605b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a34dda3fc71497fe1a7ef2f3d2c2a953.png)
(1)求椭圆C的方程;
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0068ae8bb3fb1c75a3843e590fb30607.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd927b4b5a7875528c1b54aa4bb8b2dd.png)
您最近一年使用:0次
2024-01-02更新
|
444次组卷
|
6卷引用:2024年全国高考名校名师联席命制型数学信息卷(七)
(已下线)2024年全国高考名校名师联席命制型数学信息卷(七)(已下线)2024年全国高考名校名师联席命制数学(理)信息卷(四)(已下线)2024年全国高考名校名师联席命制数学(文)信息卷(三)江西省上饶市玉山县第二中学2023-2024学年高二上学期12月月考数学试题四川省成都市石室中学2023-2024学年高二上学期期末综合复习数学试题(一)山东省菏泽市2024届高三上学期期末考试数学试题(B)
解题方法
3 . 已知椭圆中心在坐标原点,焦点在
轴上,且焦距为
,椭圆上一点到两焦点的距离之和为6.
(1)求椭圆的标准方程:
(2)设点
是椭圆上一动点,点
是圆
上一动点,求
的最大值,并求出此时点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
(1)求椭圆的标准方程:
(2)设点
![](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/51ecf7a6913d90c2df051d608011cc57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82358b724051b032c7ec734a226ae84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
4 . 设
、
分别是椭圆
的左、右焦点,若_____,
请在以下两个条件中任选一个补充在横线上并作答.
①四点
、
、
、
中,恰有三点在椭圆
上;
②椭圆
经过点
,
与
轴垂直,且
.
(注:如果选择多个条件分别解答,则按第一个解答计分).
(1)求椭圆
的离心率;
(2)设
是椭圆
的上顶点,过
任作两条互相垂直的直线分别交椭圆
于
、
两点,过点
作线段
的垂线,垂足为
,判断在
轴上是否存在定点
,使得
的长度为定值?并证明你的结论.
![](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/851a5d6ec23256f9b4a9e98aa92945fe.png)
请在以下两个条件中任选一个补充在横线上并作答.
①四点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07f05b989842734d1afd9429d15f5484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6ccebafcbec8ab901145708edf2b3da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbdd68297be3e412c68d27457a9f8224.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9085f45a27c7122adddfec645b233e00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
②椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23e97a3b321e8f5a5cc526b2b8daa702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183b6a0cef4256c9696a5bca31053da5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a3c9cedff7811b2f9e565bdf42bfee1.png)
(注:如果选择多个条件分别解答,则按第一个解答计分).
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a81443594dd303ef713b62378dd5c20.png)
您最近一年使用:0次
名校
解题方法
5 . 已知圆
,圆
,若动圆M与圆F1外切,与圆F2内切.
(1)求动圆圆心M的轨迹C的方程;
(2)直线l与(1)中轨迹C相交于A,B两点,若Q
为线段AB的中点,求直线l的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca35ed49994a8717940089291022f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5f71444aa098910cffa52fdacd5e3c6.png)
(1)求动圆圆心M的轨迹C的方程;
(2)直线l与(1)中轨迹C相交于A,B两点,若Q
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19a20a61d384b658080b92d8c1a9e7c0.png)
您最近一年使用:0次
2023-12-20更新
|
2224次组卷
|
7卷引用:四川省成都市蓉城名校2023-2024学年高二上学期期末联考数学试题
四川省成都市蓉城名校2023-2024学年高二上学期期末联考数学试题四川省绵阳市南山中学实验学校2023-2024学年高二上学期期末模拟数学试题(三)甘肃省兰州第一中学2023-2024学年高二上学期1月期末数学试题(已下线)专题03 圆锥曲线的方程(3)(已下线)第08讲:圆锥曲线(大题) (必刷7大考题+7大题型)-2023-2024学年高二数学上学期《考点·题型·难点》期末高效复习(人教A版2019)(已下线)专题03 椭圆13种常见考法归类(3)吉林省通化市梅河口市第五中学2023-2024学年高二下学期开学考试数学试题
解题方法
6 . 在
中,
,
,则
面积的最大值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9be4380bdcef1c542604a6ad61642c0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d8bfe22f65d2ea1123905cd1815912.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
7 . 设椭圆
的焦点分别为
与
.若此椭圆上存在点
使得
为正三角形,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca3997e2e743835239010fa32ee3e001.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c08475517a5a699eaf43e975a49855b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f00babe10971b71caf8cffb72412950d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74d48413457e48bfc45ee289139fd706.png)
A.![]() | B.![]() | C.28 | D.36 |
您最近一年使用:0次
8 . 已知圆
,圆
.若动圆
与圆
外切,且与圆
内切.
(1)求圆
和圆
的圆心和半径
(2)求动圆的圆心
的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f09301f91879129399c1ba45635f89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3e7ea39906456429384362b6d037ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
(2)求动圆的圆心
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
您最近一年使用:0次
2023·全国·模拟预测
名校
解题方法
9 . 已知圆
,圆
,动圆
与圆
和圆
均相切,且一个内切、一个外切.
(1)求动圆圆心
的轨迹
的方程.
(2)已知点
,过点
的直线
与轨迹
交于
两点,记直线
与直线
的交点为
.试问:点
是否在一条定直线上?若在,求出该定直线;若不在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07112c5e9c83f79633ab2753c9b8b2f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca8cb816d758a13224877ef1d7f954ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(1)求动圆圆心
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25a47e8ecd2cdc48a3d54bb43f3fdf6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.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/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
2023-12-01更新
|
1259次组卷
|
5卷引用:高考2024年普通高等学校招生全国统一考试?信息卷数学(二)
(已下线)高考2024年普通高等学校招生全国统一考试?信息卷数学(二)广东省广州市白云中学2023-2024学年高二上学期12月月考数学试题(已下线)热点7-2 椭圆及其应用(8题型+满分技巧+限时检测)(已下线)微考点6-1 圆锥曲线中的非对称韦达定理问题(三大题型)福建省莆田市锦江中学2023-2024学年高二上学期第二次月考数学试题
2023·全国·模拟预测
名校
10 . 已知分别是椭圆
的左、右焦点,
在
上,
在
轴上,
,以
为直径的圆过
,且
的面积为
,则椭圆
的标准方程为( )
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次