名校
1 . 直线
与焦点在x轴上的椭圆
总有公共点,则实数m的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6767830cc1811f0f4ea5a008fdc7e723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebb783f89d6c82bb0b59f6f28e669dcd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
2 . 已知椭圆
的方程为
,左、右焦点分别是
,
,若椭圆
上的点
到
,
的距离和等于4.
(1)写出椭圆
的方程和焦点坐标.
(2)直线
过定点
,且与椭圆
交于不同的两点
,
,若原点
在以线段
为直径的圆外,求直线
的斜率的取值范围.
![](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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea8a480a2fe03293cb8303da8837d7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
(1)写出椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ed90ebf0061c8a79beed307fc1719a.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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2020-12-11更新
|
1259次组卷
|
5卷引用:四川成都金牛区成都市石室外语学校2019-2020学年高二上学期期中文科数学试题
3 . 已知椭圆
:
,四点
,
,
,
中恰有三点在椭圆
上.
求椭圆
的方程;
直线
:
与椭圆
有且仅有一个公共点,且与
轴和
轴分别交于点
,
,当
面积取最小值时,求此时直线
的方程.
![](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/ceb775090fbf97db28b49f1e28eef6d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/676424e6056342a83a7c3ba14c759f39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5384c858c10d4f3ecb4b64b93681d77e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d05318cffb36d7c6da301892ec1da68a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d27bc3a7f511eb588c096c5672d5da49.png)
![](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/d053b14c8588eee2acbbe44fc37a6886.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/d4f02028a3847c4807c2d3cf0ea7efb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2020-10-10更新
|
1056次组卷
|
4卷引用:湖南省六校2020-2021学年高三上学期联考(一)数学试题
湖南省六校2020-2021学年高三上学期联考(一)数学试题(已下线)考点35 椭圆的标准方程及几何性质-备战2021年新高考数学一轮复习考点一遍过(已下线)考点38 直线与圆锥曲线的位置关系-备战2021年新高考数学一轮复习考点一遍过浙江省嘉兴外国语学校2023-2024学年高二上学期期中数学试题
名校
4 . 已知椭圆C:
+
=1(a>b>0)的左、右顶点分别为A,B,离心率为
,点P
为椭圆上一点.
![](https://img.xkw.com/dksih/QBM/2020/8/19/2531370389250048/2532148672299008/STEM/8b8a7806cf7b48da8e5b42762dfaf64d.png?resizew=208)
(1)求椭圆C的标准方程;
(2)如图,过点C(0,1)且斜率大于1的直线l与椭圆交于M,N两点,记直线AM的斜率为k1,直线BN的斜率为k2,若k1=2k2,求直线l斜率的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7355be4fcbc3130a5951364a3be76d6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5268413295580cfda0755ab458b36b64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea2de52259b426acb42761fec59a7748.png)
![](https://img.xkw.com/dksih/QBM/2020/8/19/2531370389250048/2532148672299008/STEM/8b8a7806cf7b48da8e5b42762dfaf64d.png?resizew=208)
(1)求椭圆C的标准方程;
(2)如图,过点C(0,1)且斜率大于1的直线l与椭圆交于M,N两点,记直线AM的斜率为k1,直线BN的斜率为k2,若k1=2k2,求直线l斜率的值.
您最近一年使用:0次
2020-08-20更新
|
907次组卷
|
12卷引用:黑龙江省双鸭山市第一中学2019-2020学年高三上学期12月月考数学(文)试题
黑龙江省双鸭山市第一中学2019-2020学年高三上学期12月月考数学(文)试题湖南省长郡中学2019-2020学年高二上学期第二次模块检测数学试题浙江省丽水市四校2019-2020学年高二上学期期中数学试题江苏省南通市南通中学2019-2020学年高二上学期期中数学试题(已下线)专题12 圆锥曲线的综合应用-《巅峰冲刺2020年高考之二轮专项提升》(江苏)2020届江苏省苏州中学高三上学期期初数学试题(已下线)考点27 椭圆的综合问题-2021年高考数学三年真题与两年模拟考点分类解读(新高考地区专用)四川省仪陇马鞍中学校2021-2022学年高二下学期第一次月考理科数学试题(已下线)专题41 定比点差法、齐次化、极点极线问题、蝴蝶问题(已下线)第五篇 向量与几何 专题11 圆锥曲线中的蝴蝶定理 微点2 圆锥曲线中的坎迪定理(已下线)重难点突破18 定比点差法、齐次化、极点极线问题、蝴蝶问题(四大题型)(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)
5 . 已知椭圆
与双曲线
的离心率互为倒数,且直线
经过椭圆的右顶点.
(1)求椭圆C的标准方程;
(2)设不过原点O的直线与椭圆C交于M,N两点,且
,求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a218602e8e3a52f74f760059aa7014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c6d3c99b7004603ba9ea9c341b8b3f.png)
(1)求椭圆C的标准方程;
(2)设不过原点O的直线与椭圆C交于M,N两点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/919af6ecf5222e87ac83f43347887764.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
您最近一年使用:0次
2020-08-05更新
|
1272次组卷
|
9卷引用:2015-2016学年黑龙江绥棱县一中高二6月月考数学(理)试卷
2015-2016学年黑龙江绥棱县一中高二6月月考数学(理)试卷2016-2017学年内蒙古赤峰二中高二文上月考一数学试卷人教A版(2019) 选择性必修第一册 必杀技 第三章 圆锥曲线的方程 专题4 直线与圆锥曲线的综合问题(已下线)【新教材精创】3.2.2+双曲线的简单几何性质(2)-B提高练-人教A版高中数学选择性必修第一册(已下线)【新教材精创】2.6.2+双曲线的几何性质(2)-B提高练-人教B版高中数学选择性必修第一册苏教版(2019) 选修第一册 必杀技 第三章 专题3 直线与圆锥曲线的综合问题北师大版(2019) 选修第一册 必杀技 第二章 4.1 直线与圆锥曲线的位置关系(已下线)专题3.2 双曲线-《讲亮点》2021-2022学年高二数学新教材同步配套讲练(苏教版2019选择性必修第一册)(已下线)4.1 直线与圆锥曲线的交点
名校
解题方法
6 . 已知椭圆
的焦距为
,且过点
.
(1)求C的方程;
(2)若直线l与C有且只有一个公共点,l与圆x2+y2=6交于A,B两点,直线OA,OB的斜率分别记为k1,k2.试判断k1∙k2是否为定值,若是,求出该定值;否则,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa2ced8c763b3778b5670320eacf535f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/937dbb96343b8a9e52718e785e9eda43.png)
(1)求C的方程;
(2)若直线l与C有且只有一个公共点,l与圆x2+y2=6交于A,B两点,直线OA,OB的斜率分别记为k1,k2.试判断k1∙k2是否为定值,若是,求出该定值;否则,请说明理由.
您最近一年使用:0次
2020-05-07更新
|
1837次组卷
|
5卷引用:2020届福建省福州市高三质量检测理科数学试题
解题方法
7 . 已知椭圆
的左、右焦点分别为
和
,点
在椭圆
上,
,
.
(1)求椭圆
的方程;
(2)直线
过点
且与椭圆
交于
两点,若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac9772ee7b590351b96033dcffd585da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155c4428098f8bbbc1f76a1c5f3db307.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c397129dacf0871ab2db37e60560f4b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3ad48cf1c555ad7cd7b8373d7875ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2020-04-23更新
|
108次组卷
|
2卷引用:2019届百师联盟全国高三冲刺考(三)全国I卷文科数学试卷
解题方法
8 . 如图,设抛物线
的焦点为F,点P是半椭圆
上的一点,过点P作抛物线C的两条切线,切点分别为A、B,且直线PA、PB分别交y轴于点M、N.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/db5c6a1e-193a-41d5-92bd-e5bf9343d233.png?resizew=129)
(1)证明:
;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/464dcac5a17aca4b544deef5438f2776.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/24/db5c6a1e-193a-41d5-92bd-e5bf9343d233.png?resizew=129)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47076f68751615b8ca169f7c81078b36.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d24963e01e516e09b2a6cc9ae3034abf.png)
您最近一年使用:0次
9 . 已知椭圆
的短轴长为
,焦距为4,直线
与
相交于
两点,且
,直线
与
平行,且它们之间的距离为
,与
相交于
两点.
(1)求
的方程;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b91d650c2fc1a741fabdb333b09aeb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ffe6763c82be017bc6759a7d061470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4daf40bad1cc89311930cce356672354.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d596a67d57987dd5f2632e3d9c2149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084cf5ffced059f5653ee2a1023518b7.png)
您最近一年使用:0次
10 . 已知离心率为
的椭圆
经过抛物线
的焦点
,斜率为1的直线
经过
且与椭圆交于
两点.
(1)求
面积;
(2)动直线
与椭圆有且仅有一个交点,且与直线
分别交于
两点,
为椭圆的右焦点,证明
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f663b1f65678d7a4706da3d0727be4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029d213f131f206f5f3520860de56690.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a948d2f7732d7f03e986c63712089b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39acab3cfb59bfc9591371721ab01d93.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a9a6eeeebf3cff569578d7366b755aa.png)
(2)动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec9924d2204a81ee287433057733a7dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264fe111254a9236289bff05c4b7a01d.png)
您最近一年使用:0次