1 . 已知抛物线
:
的焦点为
,过点
且垂直于
轴的直线交抛物线于
两点,
.
(1)求抛物线
的方程;
(2)若
,
是抛物线
上两动点,以
为直径的圆经过点
,点
,
,
三点都不重合,求
的最小值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57dfc9d1109fe41145cc892b5702d9fb.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530e5817131adf2c05b99ff18eb9060f.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd3adfb8ef95245d7d073de76ceb053a.png)
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解题方法
2 . 已知抛物线
的焦点为F,点M是抛物线的准线
上的动点.
![](https://img.xkw.com/dksih/QBM/2022/5/22/2984742987235328/2984796228083712/STEM/a08233a9-3e57-413c-9d81-f0baa02c2a4a.png?resizew=139)
(1)求p的值和抛物线的焦点坐标;
(2)设直线l与抛物线相交于A、B两点,且
,求直线l在x轴上截距b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://img.xkw.com/dksih/QBM/2022/5/22/2984742987235328/2984796228083712/STEM/a08233a9-3e57-413c-9d81-f0baa02c2a4a.png?resizew=139)
(1)求p的值和抛物线的焦点坐标;
(2)设直线l与抛物线相交于A、B两点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82bf519dea387e976b316b94784af83f.png)
您最近一年使用:0次
2022-05-22更新
|
1743次组卷
|
11卷引用:浙江省嘉兴市海宁市2022届高三下学期5月适应性考试数学试题
浙江省嘉兴市海宁市2022届高三下学期5月适应性考试数学试题(已下线)2022年全国高考甲卷数学(理)试题变式题13-16(已下线)2022年全国高考甲卷数学(理)试题变式题13-16题(已下线)2022年全国高考甲卷数学(理)试题变式题17-20题第三章 圆锥曲线的方程(B卷·能力提升练)-【单元测试】2022-2023学年高二数学分层训练AB卷(人教A版2019)(已下线)专题40 抛物线及其性质-5(已下线)专题19 圆锥曲线(讲义)-2湖北省十堰市东风高级中学2022-2023学年高三8月月考数学试题(已下线)3.3(附加2)圆锥曲线中面积和范围问题-2022-2023学年高二数学《基础·重点·难点 》全面题型高分突破(苏教版2019选择性必修第一册)(已下线)模块三 专题5 大题分类练(解析几何)基础夯实练 (已下线)3.3.2 抛物线的简单几何性质(6大题型)精练-【题型分类归纳】2023-2024学年高二数学同步讲与练(人教A版2019选择性必修第一册)
2022高三·全国·专题练习
解题方法
3 . 离心率为
的双曲线
上的动点
到两焦点的距离之和的最小值为
,抛物线
的焦点与双曲线
的上顶点重合.
(1)求抛物线
的方程;
(2)过直线
为负常数)上任意一点
向抛物线
引两条切线,切点分别为
,坐标原点
恒在以
为直径的圆内,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81cc107e4c5b7d0db1cfb1e0416b09ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e393b3e36390b1354950e2cfccc4967.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)过直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83069fdb3a6d02a6c08317779024464c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.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/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
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4 . 已知圆
,一动圆
与直线
相切且与圆
外切.
(1)求动圆圆心
的轨迹
的方程;
(2)过
作直线
,交(1)中轨迹
于
两点,若
中点的纵坐标为
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb42384656030311c543ff7dea4041e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c98a7f3a8bf384b1dfc1d34aebd46d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求动圆圆心
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2019-04-03更新
|
1538次组卷
|
5卷引用:【全国百强校】四川省雅安中学2018-2019学年高二下学期第一次月考数学(文)试题
【全国百强校】四川省雅安中学2018-2019学年高二下学期第一次月考数学(文)试题陕西省宝鸡市金台区2019-2020学年高二上学期期末数学(理)试题(已下线)2022年全国高考甲卷数学(理)试题变式题13-16(已下线)2022年全国高考甲卷数学(理)试题变式题13-16题(已下线)2022年全国高考甲卷数学(理)试题变式题17-20题