1 . 在平面直角坐标系
中,椭圆
:
经过点
,且点
为其一个焦点.
(1)求椭圆
的方程;
(2)设椭圆
与
轴的两个交点为
,
,不在
轴上的动点
在直线
上运动,直线
,
分别与椭圆
交于点
,
,证明:直线
通过一个定点,且
的周长为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/948261c41cc1509f023761d880c75582.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/493f1b39a77ead86e25e1466f13a3c1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caa04eb7cae40ce5e89da590b9cdb75e.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)设椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/911d041b94b357e0b2c9c6b28a4bec2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/800c5e266b4ad8462a46970f0a232d52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f46b053f98b1d05a2043e94eeaefea87.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/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cb41d09d7904d27e717b6e65cd80e81.png)
您最近一年使用:0次
2 . 已知曲线C:
(m∈R)
(1) 若曲线C是焦点在x轴点上的椭圆,求m的取值范围;
(2) 设m=4,曲线c与y轴的交点为A,B(点A位于点B的上方),直线y=kx+4与曲线c交于不同的两点M、N,直线y=1与直线BM交于点G.求证:A,G,N三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36cd32a789948a37088dff2891a21eff.png)
(1) 若曲线C是焦点在x轴点上的椭圆,求m的取值范围;
(2) 设m=4,曲线c与y轴的交点为A,B(点A位于点B的上方),直线y=kx+4与曲线c交于不同的两点M、N,直线y=1与直线BM交于点G.求证:A,G,N三点共线.
您最近一年使用:0次
2019-01-30更新
|
2942次组卷
|
12卷引用:2012年全国普通高等学校招生统一考试理科数学(北京卷)
2012年全国普通高等学校招生统一考试理科数学(北京卷)(已下线)2014届高考数学总复习考点引领+技巧点拨第九章第7课时练习卷陕西省西安市重点高中2021-2022学年高三上学期第一次考试理科数学试题甘肃省天水市第一中学2021-2022学年高三上学期第一次考试 数学(理科)试题北京市第五十七中学2019-2020学年高二上学期期中考试数学试题北京市中央民族大学附属中学2022届高三下学期三模数学试题北京名校2023届高三一轮总复习 第7章 解析几何 7.8 直线与椭圆的位置关系(2)(已下线)第五篇 向量与几何 专题9 完全四点形的调和性 微点1 完全四点形的调和性(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1 圆锥曲线中的蝴蝶定理人教B版(2019) 选修第一册 学习帮手 第二章 2.8 直线与圆锥曲线的位置关系湖北省武汉中学2021-2022学年高二上学期12月月考数学试题内蒙古包头市第四中学2020-2021学年高二下学期4月月考数学(理)试题
名校
3 . 已知椭圆
的两个焦点分别为
,长轴长为
.
(Ⅰ)求椭圆
的标准方程及离心率;
(Ⅱ)过点
的直线
与椭圆
交于
,
两点,若点
满足
,求证:由点
构成的曲线
关于直线
对称.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5439f5ff9bd5deec0f0ef35c6f605b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/781b183ab353b9ec98f0f57b722f546e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c88d9142df6ba8e43c1a93bd04a1362.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b6a27a9d5d345f1e04020bfea2770ac.png)
您最近一年使用:0次
2019-06-04更新
|
1519次组卷
|
10卷引用:【区级联考】北京市通州区2019届高三4月第一次模拟考试数学(理科)试题
【区级联考】北京市通州区2019届高三4月第一次模拟考试数学(理科)试题2019年12月四川省成都市双流区棠湖中学一模数学(理)试题2019年12月四川省成都市双流区棠湖中学一模数学(文)试题(已下线)2020届高三12月第01期(考点08)(文科)-《新题速递·数学》(已下线)2020届高三12月第01期(考点08)(理科)-《新题速递·数学》2020届四川省宜宾市第四中学校高三上学期期末考试数学(理)试题2020届四川省宜宾市第四中学校高三上学期期末考试数学(文)试题(已下线)专题06 平面向量在解析几何中的应用(第五篇)-2020高考数学压轴题命题区间探究与突破(已下线)专题05 平面解析几何——2020年高考真题和模拟题文科数学分项汇编(已下线)专题1 解析几何与平面向量
名校
4 . 给定椭圆
,称圆心在坐标原点
,半径为
的圆是椭圆
的“伴椭圆”,若椭圆
右焦点坐标为
,且过点
.
(1)求椭圆
的“伴椭圆”方程;
(2)在椭圆
的“伴椭圆”上取一点
,过该点作椭圆的两条切线
、
,证明:两线垂直;
(3)在双曲线
上找一点
作椭圆
的两条切线,分别交于切点
、
使得
,求满足条件的所有点
的坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da001dad7941e6c9858637d7b62cec59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b707fdf035eb2fb4467958893c60381f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a904c923ca5efc55a8a158e74ae4b0b.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)在椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0210da9839dce53ae6f0533764d24ea3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
(3)在双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a218602e8e3a52f74f760059aa7014.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1b136c779c2f9b8ee572b459746b5f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
您最近一年使用:0次
名校
5 . 已知椭圆:
的左、右点分别为
点
在椭圆上,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5de8b06bb56050c0b063c1cac74b85.png)
(1)求椭圆
的方程;
(2)过点(1,0)作斜率为
的直线
交椭圆
于M、N两点,若
求直线
的方程;
(3)点P、Q为椭圆上的两个动点,
为坐标原点,若直线
的斜率之积为
求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e31a3d0d39c91ad459865a4a9949fa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e811703a9018e3ba06c1b80b998584c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b248768fc289c31c6212ea3fcf5094be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5de8b06bb56050c0b063c1cac74b85.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
(2)过点(1,0)作斜率为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcb08401a98d8aaa79c9ce9a87b2afa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)点P、Q为椭圆上的两个动点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5ae22fefcd22e8e61d8c05ca3b056d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bac3a07939e0a7c86c017fa033176e81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5f6c5fd93aed88bec58002a20ea2e90.png)
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2019-08-16更新
|
918次组卷
|
2卷引用:上海市青浦中学2019-2020学年高三上学期9月月考数学试题
2019高三·全国·专题练习
6 . 已知椭圆
的左、右焦点分别为
,过点
且不与坐标轴垂直的直线
与椭圆
交于
两点.
(1)求直线
的斜率的取值范围;
(2)若点
在椭圆
上,且
三点共线,求证:点
与点
的横坐标相同.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533b93dd6eb6b474481247736699c76c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccc8350b12974ffc8d06fce36d158f02.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/7789a500686c7a73770404ead6af0590.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若点
![](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/7445eabdcf8054f3ba700faf3adf09c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
您最近一年使用:0次
7 . 已知椭圆
的左右焦点分别为
,其焦距为
,点
在椭圆
上,
,直线
的斜率为
(
为半焦距)·
(1)求椭圆
的方程;
(2)设圆
的切线
交椭圆
于
两点(
为坐标原点),求证:
;
(3)在(2)的条件下,求
的最大值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5379ca02a94af1e74e5e00e38ba6e327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a649229b6afa314d5cb7d9a66115734.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f4faed99e8f7100584d50eedea8c1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9ecc3aaae2aa289591a3b632f1e0645.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52b33328faae2d2d4921900e97424de5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22b2fe2eaadae4df6247a131a1cddb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
(3)在(2)的条件下,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff24c95fe581befd56c3bcc70e88b726.png)
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2019-03-26更新
|
453次组卷
|
3卷引用:【市级联考】湖北省八市(黄石市.仙桃市.天门市.潜江市.随州市.鄂州市.咸宁市.黄冈市)2019届高三3月联合考试理科数学试题
名校
解题方法
8 . 已知椭圆C:
的离心率为
,长轴长为
.
Ⅰ
求椭圆C的方程;
Ⅱ
斜率为1的直线l过椭圆C的右焦点F,交椭圆C于A,B两点,设M为椭圆C上任意一点,且
,其中O为原点
求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00df4f17848c072b51e80d427d486e31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86fc860cece09bffcc2593dc7b11aee8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb57575dea540c569265de158429425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd72b6a249a09c977c55226031195466.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bbb391bcb279073a82e886896e47eea.png)
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2019-03-08更新
|
1407次组卷
|
3卷引用:【区级联考】北京市顺义区2019届高三期末文科数学试题
名校
9 . 已知椭圆
(a>b>0)经过点
,且离心率为
.
(Ⅰ)求椭圆C的方程;
(Ⅱ)已知A(0,b),B(a,0),点P是椭圆C上位于第三象限的动点,直线AP、BP分别将x轴、y轴于点M、N,求证:|AN|•|BM|为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df3f51aa8ae11b5fb2bbd253c27d7d5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86a665785c47f87bfd0a856470b7c243.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9c6fe12d3a9727e00ef87a630302ab.png)
(Ⅰ)求椭圆C的方程;
(Ⅱ)已知A(0,b),B(a,0),点P是椭圆C上位于第三象限的动点,直线AP、BP分别将x轴、y轴于点M、N,求证:|AN|•|BM|为定值.
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2019-05-06更新
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4卷引用:【全国百强校】辽宁省鞍山市第一中学2018-2019学年高二上学期期中考试数学(理)试题
【全国百强校】辽宁省鞍山市第一中学2018-2019学年高二上学期期中考试数学(理)试题【全国百强校】辽宁省鞍山市第一中学2018-2019学年高二上学期期中考试数学(文)试题安徽省合肥市第六中学2018-2019学年高二下学期期末数学(理)试题(已下线)第39讲 斜率和积问题与定点定值问题-2022年新高考数学二轮专题突破精练
10 . 已知椭圆
的离心率为
,右焦点为
,且该椭圆过点
.
(Ⅰ)求椭圆
的方程;
(Ⅱ)当动直线
与椭圆
相切于点
,且与直线
相交于点
,求证:
为直角三角形.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54acb1cc9bc2c4065796da0ad467b0ac.png)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)当动直线
![](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/150193befc6ea4a027990c5cf216351e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5666c09fdd41cf808379debef9d3a8.png)
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2卷引用:【市级联考】湖北省仙桃、天门、潜江市2019届高三上学期期末考试数学(理)试题