1 . 已知直线
经过抛物线
的焦点且与此抛物线交于
两点,
,直线
与抛物线
交于
两点,且
两点在
轴的两侧.
(1)证明:
为定值;
(2)求直线
的斜率的取值范围;
(3)已知函数
在
处取得最小值
,求线段
的中点
到点
的距离的最小值(用
表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a159de0b2d9eb1ae0b7e664e64d3c6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7cd63005c9bd42515572bc0369de49ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e51218e05d47d697e3440da34d0c6c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d30f14c009f755460915938cba0b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a159de0b2d9eb1ae0b7e664e64d3c6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15d907557c2d36794cf37a640df86720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94165c5047e68e952df7a8dc6dc32fda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94165c5047e68e952df7a8dc6dc32fda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fcf9bfbf771cb6118f8e631724314e3.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/008d0107d9a5539043c29ba8179f1168.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a159de0b2d9eb1ae0b7e664e64d3c6c.png)
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f080380f0785f3a1cd4c6340dbe1dec7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307aa7e639a9dfbb937ec625baf22f96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab4717e4827480f0f6f4ded85e52eab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd8c0b71b1011ff96a18a2a5185dc7ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab4717e4827480f0f6f4ded85e52eab.png)
您最近一年使用:0次
2 . 在
中,
为
的中点,
,
,
,点
与点
在直线
的异侧,且
,则平面四边形
的面积的最大值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e1f4f255d191786f7d330d278868c2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7650cede07c4758a9b3bb1da4553acc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037b342a682cbd4241855a243da3c016.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09c94ff4614059e5e91ed304b150d886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dbb62e863cc189ecd0eb917f19253ed.png)
您最近一年使用:0次
2018-05-09更新
|
2159次组卷
|
5卷引用:【全国市级联】福建省泉州市2018届高三第二次(5月)质量检查数学文试题
3 . 过点
任作一直线交抛物线
于
两点,过
两点分别作抛物线的切线
.
(1)记
的交点
的轨迹为
,求
的方程;
(2)设
与直线
交于点
(异于点
),且
,
.问
是否为定值?若为定值,请求出定值.若不为定值,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48eced443f5b969c6be558849c7bd8ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
(1)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44434b647ec546fe787e2164e0be6cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac3041e623462970cd4d5b7536561834.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/029d04032c72148b5c1a515af9f5aca9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32705e629d8b9187b53efeee6605af15.png)
您最近一年使用:0次
名校
4 . 两平行线
,
的距离是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5a01affde526de97fc08e56acdf93e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3986b6a932c1dcb709a3f136a716b123.png)
您最近一年使用:0次
2017-12-03更新
|
792次组卷
|
9卷引用:福建省厦门市思明区松柏中学2020-2021学年高二(10月份)学情诊断数学试题
福建省厦门市思明区松柏中学2020-2021学年高二(10月份)学情诊断数学试题(已下线)河北省中等职业学校对口升学考试全真模拟冲刺卷数学试题二人教A版高中数学必修二:综合学业质量标准检测1江西省宜春市2017-2018学年高一上学期期末数学试题四川省江油市第一中学2020-2021学年高二第一学期期中考试数学(理)试题四川省江油市第一中学2020-2021学年高二第一学期期中考试数学(文)试题山东省枣庄市2020-2021学年高二上学期期中数学试题四川省南充市阆中中学校2021-2022学年高二上学期期中教学质量检测数学(理)试题江苏省无锡市第一女子中学2021-2022学年高二上学期期中数学试题
名校
解题方法
5 . 已知直线
分别与直线
及曲线
交于A,B两点,则A,B两点间距离的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00535d65526f7704e3f730cf0fba3c83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3f90d4cfd2f01f9c093ad00ecb5e11b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13ce6980422f77bee80680c2d82985f8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
6 . 已知椭圆
:
的左焦点为
,若点
关于直线
的对称点
在椭圆
上, 则椭圆
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.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/38cd2a180ae300bbf2388a709e4c28e6.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/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 在直角坐标系
中,圆
的方程为
.在以坐标原点
为极点,
轴正半轴为极轴的极坐标系中,直线
的极坐标方程为
.
(1)写出圆
的参数方程和直线
的普通方程;
(2)设点
位圆
上的任一点,求点
到直线
距离的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e406e4c2be675e0161514c611e9f4b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/757cc2f991fc97a773ceffbbd3a041fa.png)
(1)写出圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)设点
![](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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
解题方法
8 . 已知双曲线
,其一渐近线被圆
所截得的弦长等于
,则
的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29bde2a911aeee3e23c17732a22680c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caaa28f8d24850d36f88c72e070e688f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
A.![]() | B.![]() | C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2017-03-14更新
|
958次组卷
|
2卷引用:2017届福建省莆田市高三下学期质量检查考试数学(文)试卷
2013·福建泉州·一模
解题方法
9 . 已知点
在直线
上运动,则
的最小值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baabfd32465e9e50409413d9c1358279.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6e93dd5a76e6f1df5eab532dc85d315.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次