解题方法
1 . 已知椭圆
的一个顶点为
,离心率为
,右焦点为F,其中O为原点.
(Ⅰ)求椭圆的方程;
(Ⅱ)设点C满足
,点B在椭圆上(B异于椭圆的顶点).
(ⅰ)直线
与以C为圆心的圆相切于点P,且P为线段
的中点,求实数m的取值范围;
(ⅱ)若
,点B在第四象限,且
,求直线
的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eed6b9540857e386651e191a0a5b5a98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a12f0224fb7bf5096ed129922bf0ded3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
(Ⅰ)求椭圆的方程;
(Ⅱ)设点C满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2631dc0165c92a99eaf4c4d12f5a74b.png)
(ⅰ)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01976af20d1652c65938fdf0d469c669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b8765cf37a19ed0c76f5ab516ce697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2 . 如图,已知椭圆
的左、右顶点分别是
,上顶点为
,在椭圆上任取一点
,连结
交直线
于点
,连结
交
于点
(
是坐标原点),则下列结论正确的是( )
![](https://img.xkw.com/dksih/QBM/2020/12/21/2618873281167360/2624661278400512/STEM/2eca730b-76c3-46cd-8be8-db4bb17cc05a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d80b861ba40387cb2bcd04945f5a371a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00442d96d695db2c58bf1fb7165fca94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee8456443402a25b1e25d35ff7e1c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbb85d28f8bdeedad66fd7ec2a561455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://img.xkw.com/dksih/QBM/2020/12/21/2618873281167360/2624661278400512/STEM/2eca730b-76c3-46cd-8be8-db4bb17cc05a.png)
A.![]() | B.![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
2020-12-29更新
|
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4卷引用:福建省德化一中、漳平一中、永安一中三校协作2020-2021学年高二12月联考数学试题
福建省德化一中、漳平一中、永安一中三校协作2020-2021学年高二12月联考数学试题江苏省徐州市第一中学2023-2024学年高二上学期期中数学试题江苏省泰州市泰兴中学2023-2024学年高二上学期阶段测试(三)数学试题(已下线)考点43 直线与方程-备战2021年高考数学经典小题考前必刷(新高考地区专用)
名校
解题方法
3 . 已知抛物线
的焦点为
,过点
的直线与抛物线交于
,
两点,直线
,
分别与抛物线交于点
,
,设直线
与
的斜率分别为
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d295a4cc3a58f9f38ee98337313c81.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/2273ae1ee99cec9c1304323bc9ebf75f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1460aa3d83df61f6c411b34412135451.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/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9af41ccb8328510b272cd02ecc2a9622.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
2020-05-03更新
|
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3卷引用:山东省烟台市2017-2018学年高二上学期期末考试数学(理)试题
4 . 已知椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5563df225901b03c51b139684de04bd1.png)
,点
为椭圆上的点,长轴
,
,
为椭圆的上,下顶点,直线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c80e3a3b6c6513a45506f605638f5655.png)
交椭圆于
,
(点
在点
左侧,且
与
不重合).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/3a7b9b23-e365-4342-bab1-51dab215a121.png?resizew=199)
(1)求证:直线
,
的倾斜角互补;
(2)记
的斜率为
,
的斜率为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5563df225901b03c51b139684de04bd1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f82eb4ba631d0f50d848aa6e576b379.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/480f004c98a0df86a35a48bc973f0472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.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/c80e3a3b6c6513a45506f605638f5655.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/877f829930fc5080200d0c209c601f09.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/29/3a7b9b23-e365-4342-bab1-51dab215a121.png?resizew=199)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c884b508394b3ab50734b584d9ec783c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e0a8cfb3747c454e0698e12857ffae8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67351fe10fcfc3f9072eec4c60bfaaa5.png)
您最近一年使用:0次
名校
解题方法
5 . 已知直线
(其中
为实数)过定点P,点Q在函数
的图像上,则PQ连线的斜率的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d1f7b8b94ca229d486b879ec926d2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1305b9abebd7bef3171486df157286b3.png)
您最近一年使用:0次
2019-12-12更新
|
1119次组卷
|
10卷引用:上海市行知中学2018-2019学年高二上学期期中数学试题
上海市行知中学2018-2019学年高二上学期期中数学试题2016届上海市宝山区高三上学期期末教学质量监测数学试题2016届上海市宝山区高考一模数学试题上海市七宝中学2020届高三上学期11月月考数学试题(已下线)专题4.1 坐标平面上的直线【压轴题型专项训练】-2020-2021学年高二数学下学期期末专项复习(沪教版)(已下线)1.2 直线的方程(B 能力培优练)-2021-2022学年高二数学上学期同步双培优检测(苏教版2019选择性必修第一册)苏教版(2019) 选修第一册 必杀技 第一章 素养检测上海奉贤区致远高级中学2022-2023学年高二下学期第二次月考(5月)数学试题上海市市西中学2022届高三上学期12月月考数学试题上海市曹杨第二中学2024届高三上学期开学考试数学试题
6 . 已知椭圆
的下焦点为
,
与短轴的两个端点构成正三角形,以
(坐标原点)为圆心,
长为半径的圆与直线
相切.
(1)求椭圆
的方程;
(2)设点
为直线
上任意一点,过点
作与直线
垂直的直线
,
交椭圆
于
两点,
的中点为
,求证:
三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/281c9349efe55d0db7395761fe9dc08e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cad4595d5352b2884568a59d8d766a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e0f7f6d4b14813f18aa16caca7dbd9.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3481ecc58fb0c27daf08f7735c48d8eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fb26d84907c923278ac4626a9d58947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea52bf7f8fd9b8c250482db53bdf0705.png)
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2019-05-23更新
|
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2卷引用:【市级联考】湖北省黄冈市2019届高三2月联考数学(文)试题
7 . 已知直线
与抛物线
交于
,
两点,且
的准线与
轴交于点
.
(1)证明:
;
(2)直线
,
的斜率分别记为
,
,若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba028c08c384ea58f685f68ea9e5814a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6ff82ebdfad5e7de1c7487b0b817a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a53e311ee0b5085e7e5a45c606daa5d.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/ac047e91852b91af639feec23a9598b2.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f041a6e34de49aaf70ac9159553fda3.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3f0177236b8a8ba08499fe494352c41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2019-01-01更新
|
364次组卷
|
5卷引用:【校级联考】贵州省部分重点中学2019届高三12月联考数学(文)试题
名校
解题方法
8 . 如图,设
为抛物线
上不同的四点,且点
关于
轴对称,
平行于该抛物线在点
处的切线
.
(1)求证:直线
与直线
的倾斜角互补;
(2)若
,且
的面积为
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d21919c31c82e3bb78733605ef41255.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91356fe1338cd458e4b1761b36873145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0617f56916bf06bf6424dabe5c01753f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fcf9bfbf771cb6118f8e631724314e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/289d7a880379d6060065c829b45b0ed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a159de0b2d9eb1ae0b7e664e64d3c6c.png)
(1)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/008efa3204b3fe4cc234b507bc59fb14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/854f480c60b88b546cb15d3b5622e212.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec50d5034eedf4d71997a40bede69d0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/fb28af17-77c0-4ab4-95bb-fe66851628d8.png?resizew=184)
您最近一年使用:0次
9 . 已知点
和椭圆
.
(1)设椭圆的两个焦点分别为
,试求
的周长及椭圆的离心率.
(2)若直线
与椭圆
交于两个不同点
,直线
与
轴分别交于
两点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f13bf66fc845b115de4ec45b4be0e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b3cfb07fcf2c1bf055d517631d80b7c.png)
(1)设椭圆的两个焦点分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c390befb7e3c85d334794828be23a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5929048ce5167abc4750589f2e21841.png)
您最近一年使用:0次
10 . 已知点
,直线
与线段
相交,则实数
的取值范围是____ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5912eba6e0531a6acc2c0e71aff62820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b67a1d08cad134f7f512cc23d215a06a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2018-03-18更新
|
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