1 . 设椭圆
的长半轴长为
,短半轴长为
,椭圆
的长半轴长为
,短半轴长为
,若
,则称椭圆
与椭圆
是相似椭圆.已知椭圆
,其左顶点为
,右顶点为
.
(1)设椭圆
与椭圆
是“相似椭圆”,求常数
的值;
(2)设椭圆
,过
作斜率为
的直线
与椭圆
仅有一个公共点,过椭圆
的上顶点
作斜率为
的直线
与椭圆
只有一个公共点,当
为何值时,
取得最小值,试求出最小值;
(3)已知椭圆
与椭圆
是相似椭圆,椭圆
上异于
的任意一点
,求证:
的垂心
在椭圆
上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522230546d4b802094e86ceb48c2ba38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b715e7842b95f654f16056a7c7f2abe9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4f150ab98bde511e0f65d9bafab031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13423c094861baf4b759b7f3d8c3c226.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd731967bb86ddf18e9e473daa96041a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/522230546d4b802094e86ceb48c2ba38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4f150ab98bde511e0f65d9bafab031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ff1455a4045eb93f482c0751840aea7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)设椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d56cbbfc76e5d203ea5efffbbc6d291.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
(2)设椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96d6ba128a26fe49c989ba5f6538e5f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4489d9b83072184c0e1d6b09be50ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f0b669ef4514f24ee09adeff7f41238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05d1e1062878dcb155964639267bdedf.png)
(3)已知椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1217c64cc23489dccb61d90a5500da84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b77e6b117cf9d90d7d31d7ebde3dbf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
您最近一年使用:0次
2017-03-03更新
|
1165次组卷
|
5卷引用:上海市金山中学2016-2017学年高二下学期期末考试数学试题
上海市金山中学2016-2017学年高二下学期期末考试数学试题2016-2017学年山东省烟台市高二上学期期末考试数学(理)试卷(已下线)山东省烟台市2016-2017学年高二上学期期末考试理数试题(已下线)专题5.8 期末考前选做30题(解答题压轴版)-2020-2021学年高二数学下学期期末专项复习(沪教版)2016届上海市浦东新区高三综合练习(三模)数学试题
2 . 已知点P是椭圆
上的在第一象限内的点,又
、
,O是原点,则四边形OAPB的面积的最大值是_________ .
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137640448/STEM/96996492122e423d87a97793569994af.png?resizew=80)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137640448/STEM/805daa52b11b4f90a7761c5e726d84b2.png?resizew=47)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137640448/STEM/78e5ea5c6d8e47bf9020353b655009c3.png?resizew=44)
您最近一年使用:0次
3 . 已知方程
表示椭圆,则
的取值范围为__________ .
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137583104/STEM/6a5bca0ccf214678a08543eab1e5f8da.png?resizew=109)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137583104/STEM/df8684c5db234af3ba6c03a5dc79677d.png?resizew=13)
您最近一年使用:0次
4 . 过点
且方向向量为
的直线与双曲线
仅有一个交点,则实数
的值为__________ .
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137624064/STEM/de7814c479fb49539ec3acb9ffba480c.png?resizew=56)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137624064/STEM/76dc19bfb8bc4f01b9b1106ef5b2ea4c.png?resizew=32)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137624064/STEM/1f903d6367ef4f85856a3ddeb749dce4.png?resizew=81)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137624064/STEM/037917bcee2e47c99aae2bb61a30d39d.png?resizew=13)
您最近一年使用:0次
5 . 双曲线
的焦点为F1、F2,,P在双曲线上 ,且满足:
,则
的面积是_________ .
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137681408/STEM/f4fd12d588c242fc95ab37a9fa213469.png?resizew=125)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137681408/STEM/d8b35bd1789842809b1aab9e05892286.png?resizew=161)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137681408/STEM/64a1bc0bca91444cb28919d527ff7bb4.png?resizew=52)
您最近一年使用:0次
6 . 若点O和点F分别为双曲线
的中心和左焦点,点P为双曲线右支上的任意一点,则
的取值范围为__________ .
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137665024/STEM/97cfdf5598c8452a9ed90dc34936ffe6.png?resizew=79)
![](https://img.xkw.com/dksih/QBM/2016/5/31/1572679131873280/1572679137665024/STEM/da1181a07ba64be2b0ae1bd6c67b67d6.png?resizew=56)
您最近一年使用:0次
7 . 函数
,x∈[﹣1,+∞)是增函数的一个充分非必要条件是
![](https://img.xkw.com/dksih/QBM/2016/3/28/1572560047726592/1572560053723136/STEM/db643cf8f53945b18ceb1f29fef06cdb.png)
A.a<1且b>3 |
B.a>﹣1且b>1 |
C.a>1且b>﹣1 |
D.a<﹣2且b<2 |
您最近一年使用:0次
名校
8 . 原命题“若A∪B≠B,则A∩B≠A”与其逆命题、否命题、逆否命题中,真命题的个数是
A.0个 | B.1个 | C.2个 | D.4个 |
您最近一年使用:0次
11-12高三上·贵州六盘水·阶段练习
名校
9 . 对任意实数
,则方程
所表示的曲线不可能是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f20081714074eb27eb4854f4b594d527.png)
A.椭圆 | B.双曲线 | C.抛物线 | D.圆 |
您最近一年使用:0次
2017-11-10更新
|
1225次组卷
|
9卷引用:上海市金山区2018-2019学年高二上学期期末数学试题
上海市金山区2018-2019学年高二上学期期末数学试题(已下线)2011-2012学年吉林省长春市十一中学高二上学期期末文科数学试卷【市级联考】山西省太原市2018-2019学年高二上学期期末考试数学(文)试题(已下线)2011-2012学年贵州省六盘水市第二中学高三11月月考数学理科试卷2017-2018学年人教版数学选修1-1阶段质量检测:第二章 圆锥曲线与方程四川省成都市树德中学2017-2018学年高二12月月考数学(理)试题重庆育才中学2019-2020学年高二第一次月考数学试题2.3.1抛物线及其标准方程 同步练习-2022-2023学年高二上学期北师大版(2019)选择性必修第一册上海师范大学附属宝山罗店中学2023-2024学年高二上学期期中数学试题
10 . 方程
的图象表示曲线C,则以下命题中
甲:曲线C为椭圆,则
;乙:若曲线C为双曲线,则
;
丙:曲线C不可能是圆;丁:曲线C表示椭圆,且长轴在x轴上,则
.
正确个数为
![](https://img.xkw.com/dksih/QBM/2016/8/24/1572990986354688/1572990992351232/STEM/7d1816e77c5646ca9d0f13eebed2182f.png)
甲:曲线C为椭圆,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ba778a367ebbd0bb03cdf8574362113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf082f3a31db212e7981fefc995db6d9.png)
丙:曲线C不可能是圆;丁:曲线C表示椭圆,且长轴在x轴上,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7df2cc3c9cb139fe5e5d5bc8a322856.png)
正确个数为
A.1个 | B.2个 | C.3个 | D.4个 |
您最近一年使用:0次
2016-12-03更新
|
749次组卷
|
3卷引用:2014-2015学年上海市金山中学高二下学期期末考试数学试卷