1 . 如图,过点
作两条直线
和
,分别交抛物线
于
,
和
,
(其中
,
位于
轴上方),直线
,
交于点
.
![](https://img.xkw.com/dksih/QBM/2021/9/18/2810630542082048/2812457257697280/STEM/86514558-4206-4061-9240-bc7a0c2a7ab4.png?resizew=259)
(1)试求
,
两点的纵坐标之积,并证明:点
在定直线
上;
(2)记
的面积为
,
的面积为
,若
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d56ab70e602f2e2e291df643ab209162.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e59b1617e5e62ab62af92b7865a9e412.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b072ff6d1b83232bebd7d4709ffba4ef.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://img.xkw.com/dksih/QBM/2021/9/18/2810630542082048/2812457257697280/STEM/86514558-4206-4061-9240-bc7a0c2a7ab4.png?resizew=259)
(1)试求
![](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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b51ece6bb53c3f5bf2da7d9ee5960e44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef583bce2604703dbb13b79c20d1e61f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acee03d4bb4667b6c345221b6c9b0fa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e3caf937174cb96f24b955927d6842a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f545a3ab74d9c4dfaa34efd8dfe86539.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
2021-09-20更新
|
359次组卷
|
7卷引用:专题9.8 直线与圆锥曲线的位置关系(讲)-浙江版《2020年高考一轮复习讲练测》
(已下线)专题9.8 直线与圆锥曲线的位置关系(讲)-浙江版《2020年高考一轮复习讲练测》湖北省“荆、荆、襄、宜四地七校考试联盟2019-2020学年高三上学期10月联考数学(理)试题内蒙古赤峰市松山区2020-2021学年高三第一次统一模拟考试理科数学试题苏教版(2019) 选修第一册 突围者 第3章 专项拓展训练1 椭圆、双曲线的离心率的求解苏教版(2019) 选修第一册 一蹴而就 第3章 单元测试江西省遂川中学2021-2022学年高二上学期第二次月考数学(理)试题(A卷)(已下线)专题9-6 圆锥曲线大题:非韦达定理形式归类
名校
解题方法
2 . 已知抛物线
的顶点在原点,焦点在
轴上,且抛物线上有一点
到焦点的距离为5.
(1)求该抛物线
的方程;
(2)已知抛物线上一点
,过点
作抛物线的两条弦
和
,
,判断直线
是否过定点?并说明理由.
![](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/57c438531a5c9508d14ef7008eb4e732.png)
(1)求该抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知抛物线上一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/738053bd0217fad1657515ea93464471.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2e2c0d4ac2bd79f6cea7a9b1a50662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce6c0e9de83f2e64ae33609fc08459d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e21402367709de8a3cb28d3444d33a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
您最近一年使用:0次
2017-10-27更新
|
1064次组卷
|
11卷引用:2017-2018学年度下学期高中期末备考 【浙江版】高二【精准复习模拟题】 基础卷01【教师版】
(已下线)2017-2018学年度下学期高中期末备考 【浙江版】高二【精准复习模拟题】 基础卷01【教师版】广西柳州市2018届高三毕业班上学期摸底联考数学(文)试题内蒙古赤峰市第二中学2018届高三上学期第三次月考数学(文)试题广西柳州市2018届高三上学期摸底联考数学(文)试题广东省华南师范大学附属中学2018届高三综合测试(三)数学(文)试题(已下线)《2018届优生-百日闯关系列》数学专题三 第三关 以解析几何中与抛物线相关的综合问题2017-2018学年第一学期期末复习备考之精准复习模拟题高三年级(文)人教版数学试题(C卷)人教A版(2019) 选择性必修第一册 必杀技 第三章 圆锥曲线的方程 专题5 与圆锥曲线有关的范围、最值、定点、定值问题人教B版(2019) 选择性必修第一册 必杀技 第二章 平面解析几何 专题5 与圆锥曲线有关的取值范围(最值)问题、定点与定值问题苏教版(2019) 选修第一册 必杀技 第三章 专题4 与圆锥曲线有关的范围、最值、定点、定值问题北师大版(2019) 选修第一册 必杀技 第二章 4.2 直线与圆锥曲线的综合问题
20-21高三下·全国·阶段练习
解题方法
3 . 已知抛物线
的焦点
与椭圆
的一个焦点重合,过坐标原点
作两条互相垂直的射线
,与
分别交于
,则直线
过定点______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e0b4bbfa0ed04cd3c2454d99d64e29c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/152236216f8d1cb39b261108e8fc8b9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f65dbed884e2248ec075655c684aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
您最近一年使用:0次
名校
解题方法
4 . 已知抛物线
,直线
与抛物线
交于
为抛物线
上一点.
(1)若
,求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(2)已知点
,过点
作直线
分别交曲线
于
,证明:在点
运动过程中,直线
始终过定点,并求出该定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa2c731aaa4005382d5b4324e29fbb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33400b08941f4f9c0ed12b0e0cdff822.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23a234cf1ad4edfd5553004d5167fff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3835e6398d18d162afebc92cd2ae9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/499a1cdf00140d4d3a085502601cce3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/237c115d5b39d761e1cbcae031070b70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dedd84baa5219a2af415be51947c301.png)
您最近一年使用:0次
名校
解题方法
5 . 已知抛物线
上一点
,过点
作抛物线的两条弦
,
,且
,则直线
经过定点为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e8953ded144195804384dcb494d5e2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26e951d6d2369e8da79a793a93a66a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822ba132ca9dd0d4a050659aef3c9b26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
您最近一年使用:0次
2021-08-31更新
|
337次组卷
|
5卷引用:考点38 直线与圆锥曲线的位置关系-备战2022年高考数学一轮复习考点帮(浙江专用)
(已下线)考点38 直线与圆锥曲线的位置关系-备战2022年高考数学一轮复习考点帮(浙江专用)广东省普宁市2020届高三上学期期中数学(理)试题(已下线)第06讲 抛物线的简单几何性质-【帮课堂】(已下线)专题45 盘点圆锥曲线中的定点问题——备战2022年高考数学二轮复习常考点专题突破甘肃省张掖市某重点校2022-2023学年高三上学期第四次检测数学(理)试题
解题方法
6 . 已知抛物线
和直线
.
(1)求抛物线焦点到准线的距离;
(2)若直线
与抛物线
有两个不同的交点,求
的取值范围;
(3)在(2)的条件下,设直线
与抛物线
的交点为
,且
中点的横坐标为
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67f8eb63af65ec83b223ac31f18738cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd40f44c911918ee3638eb1a24bb1bd9.png)
(1)求抛物线焦点到准线的距离;
(2)若直线
![](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/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)在(2)的条件下,设直线
![](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/533a7b702ada1dd80123e4041271d521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
7 . 已知点F是抛物线C:
的焦点,P是其准线l上任意一点,过点P作直线PA,PB与抛物线C相切,A,B为切点,PA,PB与x轴分别交于Q,R两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/ef7dff34-0ade-4eb3-bbd5-d8fbd2e70f1a.png?resizew=204)
(Ⅰ)求焦点F的坐标,并证明直线AB过点F;
(Ⅱ)求四边形ABRQ面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/26/ef7dff34-0ade-4eb3-bbd5-d8fbd2e70f1a.png?resizew=204)
(Ⅰ)求焦点F的坐标,并证明直线AB过点F;
(Ⅱ)求四边形ABRQ面积的最小值.
您最近一年使用:0次
8 . 已知抛物线
的焦点为
,点
,且
.
Ⅰ
求抛物线方程;
Ⅱ
设
是抛物线上的两点,当
为
的垂心时,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b3932717847eb0859019f07a7445ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bff62d390765ebace92cdd24304f56b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047508fd27e0a039fabaf57b97e1686b.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/7ae1567d8f98fabc1a3948f8602cc5e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822b3850f7df506efc1a592d57ec3a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
您最近一年使用:0次
9 . 已知点
是抛物线
的焦点,
是其准线
上任意一点,过点
作直线
,
与抛物线
相切,
,
为切点,
,
与
轴分别交于
,
两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/1deeacc1-afde-4aeb-ac54-ef6fa5b5a7cc.png?resizew=218)
(1)求焦点
的坐标,并证明直线
过点
;
(2)求四边形
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7ad3432ac96b0a38beaa7f2edc3499.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/1deeacc1-afde-4aeb-ac54-ef6fa5b5a7cc.png?resizew=218)
(1)求焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
(2)求四边形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61485b8657009f66b6b3a947c5ef2370.png)
您最近一年使用:0次
2020-06-24更新
|
443次组卷
|
3卷引用:浙江省临海市、乐清市、新昌县2020届高三下学期选考模拟考试数学试题
10 . 已知抛物线
的顶点在原点,焦点在
轴上,且抛物线上有一点
到焦点的距离为6.
(1)求该抛物线
的方程;
(2)已知抛物线上一点
,过点
作抛物线的两条弦
和
,且
,判断直线
是否过定点,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6631049e8a3d7a26c0eea53d872b8dfd.png)
(1)求该抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知抛物线上一点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/016f63de4ff99921607001885a114910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be2e2c0d4ac2bd79f6cea7a9b1a50662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce6c0e9de83f2e64ae33609fc08459d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e21402367709de8a3cb28d3444d33a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
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