名校
解题方法
1 . 已知抛物线
的焦点为
为
上位于第一象限的任意一点,过点
的直线
交
于另一点
,交
轴的正半轴于点
.
(1)若当点
的横坐标为
,且
为等腰三角形,求
的方程;
(2)对于(1)中求出的抛物线
,若点
,记点
关于
轴的对称点为
交
轴于点
,且
,求证:点
的坐标为
,并求点
到直线
的距离
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a21beb3c88e85fd5891d3a98fdd9ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f56bfbaabe3fa71658b68fe4a7f1ca5c.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)若当点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ca13a715cae753737d1be851c132b49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)对于(1)中求出的抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80bec787fa94b77841749b320e6d6798.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b07f3700c45a84b02f153ea0fb20b4bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d462ecbfd4c6937d4a58725b809df966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/187012048fbf70e1bd09958a34b35706.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
您最近一年使用:0次
2017-05-21更新
|
849次组卷
|
4卷引用:江西省宜春市丰城市第九中学2020-2021学年高二下学期第三次月考数学(文)试题
名校
2 . 已知抛物线
的焦点为
,直线
与
轴的交点为
,与抛物线的交点为
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/28/161ffea2-b4d4-49a5-a990-f83ab04a93fb.png?resizew=303)
(1)求抛物线的方程;
(2)如图所示,过
的直线
与抛物线相交于
,
两点,与圆
相交于
,
两点(
,
两点相邻),过
,
两点分别作抛物线的切线,两条切线相交于点
,求
与
面积之积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8516f71467b419293fa27df70bdaed74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/8fbe02ff25cdb4dd7123e399ae69bcb7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/8/28/161ffea2-b4d4-49a5-a990-f83ab04a93fb.png?resizew=303)
(1)求抛物线的方程;
(2)如图所示,过
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e265ce107592c375b78007107a9c00a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a5e0a51c9e14fb246b0ba0b231c1e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26e59b7c0d4a0b312e674b7bb061240b.png)
您最近一年使用:0次
2017-05-17更新
|
687次组卷
|
4卷引用:2017-2018学年内蒙古集宁一中高三上学期第二次月考数学(理)(详细)
名校
3 . 已知抛物线
:
(
)上一点
到焦点
的距离是点
到直线
的距离的3倍,过
且倾斜角为
的直线与抛物线
相交于
、
两点.
(Ⅰ)求
的值;
(Ⅱ)设
,直线
是抛物线
的切线,
为切点,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23976db53f05b3d5d791c4d736a7184d.png)
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abd313d4e92a762fb7fb0c1cb65263d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a24c5fda26fd257e7e30658af5f07c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c9876c27999917304938897d703ab0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79a97bb4dcfab4ec7539bc783d563c49.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/acc290b44635265137fdf13146b6a6d9.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(Ⅱ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38695ae858c076181a89bb30ff98242c.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/23976db53f05b3d5d791c4d736a7184d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
您最近一年使用:0次
2017-04-27更新
|
411次组卷
|
5卷引用:河北省正定中学2016-2017学年高二下学期第二次月考(期中)数学(文)试题
名校
解题方法
4 . 在平面直角坐标系中,已知点
,点
在直线
上运动,过点
与
垂直的直线和线段
的垂直平分线相交于点
.
(1)求动点
的轨迹
的方程;
(2)过(1)中轨迹
上的点
作两条直线分别与轨迹
相交于
,
两点.试探究:当直线
的斜率存在且倾斜角互补时,直线
的斜率是否为定值?若是,求出这个定值;若不是,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c6ff81aedbefa935da289dc632e78eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4180dae966f648d368a10edf3b7e3c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过(1)中轨迹
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dbcf0320d94734aedd3d4e2e31b9827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5e40f31633a3444bfde7187b0808774.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/863226efe54b4273103415677e5de2f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e7344dca1e40bf072371ddd5640111.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次
名校
5 . 在平面直角坐标系xOy中,一动圆经过点
且与直线
相切,设该动圆圆心的轨迹为曲线E.
(1)求曲线E的方程;
(2)设P是曲线E上的动点,点B、C在y轴上,
的内切圆的方程为
,求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d66e9d52546beeea016d6d7d3f0ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c98a7f3a8bf384b1dfc1d34aebd46d2.png)
(1)求曲线E的方程;
(2)设P是曲线E上的动点,点B、C在y轴上,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025ee3317be1099b7bf03a11e37ed4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e383fcc122f267043fbafe0972bfb900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c025ee3317be1099b7bf03a11e37ed4.png)
您最近一年使用:0次
2016-12-04更新
|
567次组卷
|
3卷引用:2016届安徽省六安一中高三第九次月考理科数学试卷
6 . 已知抛物线
:
的焦点为
,若过点
且斜率为1的直线与抛物线相交于
,
两点,且
.
![](https://img.xkw.com/dksih/QBM/2016/7/5/1572894972125184/1572894978473984/STEM/d97bce945a1e4d08a51434fa93520277.png?resizew=147)
(1)求抛物线
的方程;
(2)设直线
:
,
为上
一点,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee75acb6b203f4f203a4435723e1a251.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0634b298a988cb412483f2fe4e7847e0.png)
![](https://img.xkw.com/dksih/QBM/2016/7/5/1572894972125184/1572894978473984/STEM/d97bce945a1e4d08a51434fa93520277.png?resizew=147)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ab466aedd6e176088d8dee7bc3e3aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b3dfef1b5b07e30ee36531e996220df.png)
您最近一年使用:0次
7 . 有一块正方形菜地
,
所在直线是一条小河,收货的蔬菜可送到
点或河边运走.于是,菜地分为两个区域
和
,其中
中的蔬菜运到河边较近,
中的蔬菜运到
点较近,而菜地内
和
的分界线
上的点到河边与到
点的距离相等,现建立平面直角坐标系,其中原点
为
的中点,点
的坐标为(1,0),如图
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/10/ee723376-894b-4b4c-aace-2a392dc309a5.png?resizew=154)
(1)求菜地内的分界线
的方程
(2)菜农从蔬菜运量估计出
面积是
面积的两倍,由此得到
面积的“经验值”为
.设
是
上纵坐标为1的点,请计算以
为一边、另一边过点
的矩形的面积,及五边形
的面积,并判断哪一个更接近于
面积的经验值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589786dd7c3a2679c3230b671cd232d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/10/ee723376-894b-4b4c-aace-2a392dc309a5.png?resizew=154)
(1)求菜地内的分界线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)菜农从蔬菜运量估计出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://img.xkw.com/dksih/QBM/2016/6/13/1572723938574336/1572723944251392/STEM/295af11b13ba41d295c6c9fe6f8ce03d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589786dd7c3a2679c3230b671cd232d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://img.xkw.com/dksih/QBM/2016/6/13/1572723938574336/1572723944251392/STEM/2a5c9b42a8614dcba71af0a885b8655b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
您最近一年使用:0次
2016-12-04更新
|
308次组卷
|
11卷引用:江苏省南京市雨花台中学2020-2021年高二上学期调研测试数学试题
江苏省南京市雨花台中学2020-2021年高二上学期调研测试数学试题2016年全国普通高等学校招生统一考试理科数学(上海卷精编版)2016年全国普通高等学校招生统一考试文科数学(上海卷精编版)上海市青浦高级中学2021届高三高考数学综合练习试题(一)(已下线)第16讲 圆锥曲线综合(已下线)2016年全国普通高等学校招生统一考试理科数学(上海卷参考版)(已下线)2016年全国普通高等学校招生统一考试文科数学(上海卷参考版)(已下线)核心考点04抛物线、曲线与方程(2)(已下线)重组卷05(已下线)专题24 解析几何解答题(文科)-4(已下线)专题24 解析几何解答题(理科)-3
8 . 已知抛物线
的焦点为
,
为
上异于原点的任意一点,过点
的直线
交
于另一点
,交
轴的正半轴于点
,且有
.当点
的横坐标为
时,
为正三角形.
(Ⅰ)求
的方程;
(Ⅱ)若直线
,且
和
有且只有一个公共点
,
(ⅰ)证明直线
过定点,并求出定点坐标;
(ⅱ)
的面积是否存在最小值?若存在,请求出最小值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a4cadf68221120badd8ccfe0bd8600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/132471e8c2bd2696caaa94efed0b99d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ec012a6e524839874fd5e757c5fef8e.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e88c9366bb209931c6b28353dbab9a52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(ⅰ)证明直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
(ⅱ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d73d6dde62cacc0d1fc589d3f1565304.png)
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15卷引用:2016届湖南省常德市一中高三上第五次月考理科数学试卷
2016届湖南省常德市一中高三上第五次月考理科数学试卷2016-2017学年山西怀仁一中高二理上学期月考三数学试卷2020届湖南省株洲市第二中学高三上学期第三次月考数学(理)试题福建省2016届高三毕业班总复习(圆锥曲线)单元过关平行性测试卷数学文科试题沪教版(上海) 高三年级 新高考辅导与训练 第二部分 走近高考 第十一章 圆锥曲线高考题选浙江省杭州师大附中2020届高三下学期考前模拟数学试题(已下线)痛点15 圆锥曲线中的综合问题-2021年新高考数学一轮复习考点扫描(已下线)专题9.7 圆锥曲线综合问题(练)-2021年新高考数学一轮复习讲练测(已下线)专题9.7 圆锥曲线综合问题(精练)-2021年新高考数学一轮复习学与练(已下线)专题9.7 圆锥曲线综合问题 2022年高考数学一轮复习讲练测(新教材新高考)(练)(已下线)专题31 直线与圆锥曲线的位置关系-2022年高三毕业班数学常考点归纳与变式演练(文理通用)(已下线)专题46 盘点圆锥曲线中的最值与范围问题——备战2022年高考数学二轮复习常考点专题突破(已下线)专题24 圆锥曲线中的存在性、探索性问题 微点2 圆锥曲线中的探索性问题(已下线)专题9.9 圆锥曲线的综合问题(讲)-浙江版《2020年高考一轮复习讲练测》(已下线)专题24 解析几何解答题(理科)-3
9 . 已知抛物线
上点
到焦点
的距离为4.
(1)求
,
的值;
(2)如图所示,设A、
是抛物线上分别位于
轴两侧的两个动点,且
(其中
为坐标原点).
(ⅰ)求证:直线
必过定点,并求出该定点
的坐标;
(ⅱ)过点
作
的垂线与抛物线交于
、
两点,求四边形
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeb1a15498d7a4910a26ae500591df63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)如图所示,设A、
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4abdcc3d02baa36a2d2ffc5106719a61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(ⅰ)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(ⅱ)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/11/9bcfe377-3a48-4914-bd83-a069fae2155e.png?resizew=161)
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2016-12-03更新
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854次组卷
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3卷引用:2015届河北省唐山市一中高三12月调研考试理科数学试卷
12-13高二下·上海·阶段练习
10 . 在直角坐标系
中,设动点
到定点
的距离与到定直线
的距离相等,记
的轨迹为
.又直线
的一个方向向量
且过点
,
与
交于
两点,求
的长.
![](https://img.xkw.com/dksih/QBM/2013/7/19/1571297481089024/1571297486684160/STEM/201672a5601246099308d48695fb908c.png)
![](https://img.xkw.com/dksih/QBM/2013/7/19/1571297481089024/1571297486684160/STEM/d25f1e06199f457fb3154fbc23ee34a6.png)
![](https://img.xkw.com/dksih/QBM/2013/7/19/1571297481089024/1571297486684160/STEM/4796dadf78a6468a92014c3709d0e06e.png)
![](https://img.xkw.com/dksih/QBM/2013/7/19/1571297481089024/1571297486684160/STEM/1888d00de799442e933e281c9dec34d7.png)
![](https://img.xkw.com/dksih/QBM/2013/7/19/1571297481089024/1571297486684160/STEM/d25f1e06199f457fb3154fbc23ee34a6.png)
![](https://img.xkw.com/dksih/QBM/2013/7/19/1571297481089024/1571297486684160/STEM/ba10032c37544fc09f80b5bf0b62a7d7.png)
![](https://img.xkw.com/dksih/QBM/2013/7/19/1571297481089024/1571297486684160/STEM/2eaa6b02b52348d1827c36c60c9b7f83.png)
![](https://img.xkw.com/dksih/QBM/2013/7/19/1571297481089024/1571297486684160/STEM/a142ac2b54f840d696049381e8c4212d.png)
![](https://img.xkw.com/dksih/QBM/2013/7/19/1571297481089024/1571297486684160/STEM/a895a88527f04b2b8cdd3bb381ec6955.png)
![](https://img.xkw.com/dksih/QBM/2013/7/19/1571297481089024/1571297486684160/STEM/2eaa6b02b52348d1827c36c60c9b7f83.png)
![](https://img.xkw.com/dksih/QBM/2013/7/19/1571297481089024/1571297486684160/STEM/ba10032c37544fc09f80b5bf0b62a7d7.png)
![](https://img.xkw.com/dksih/QBM/2013/7/19/1571297481089024/1571297486684160/STEM/e180200827ec48658c6d9af3f34b383e.png)
![](https://img.xkw.com/dksih/QBM/2013/7/19/1571297481089024/1571297486684160/STEM/5de3ed023e0148cda0134496a546e28a.png)
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3卷引用:2012-2013学年上海市七校高二5月阶段检测数学试卷