1 . 已知抛物线
的焦点为
,直线
经过点
且与
交于点
.
(1)若直线
的斜率为
,求
的面积;
(2)若
,求线段
的中点到
轴的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75d41bd21b19b7e1ba41d904104a9229.png)
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe95f656b98b53f71a9d72bf0c9a4b9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e27ca8752789a82ffcdb3b1c18cfd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2 . 已知抛物线C:
的焦点为F,过F的直线
交C于A,B两点,过F与
垂直的直线交C于D,E两点,其中B,D在x轴上方,M,N分别为
,
的中点.
(1)若
,求点M的横坐标;
(2)证明:直线
过定点;
(3)设G为直线
与直线
的交点,求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0907a673d52825cd7df84b400972d4b9.png)
(2)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
(3)设G为直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/102716b8d55b91adb37dfe019cc7231b.png)
您最近一年使用:0次
2024-04-10更新
|
824次组卷
|
2卷引用:上海市建平中学2024届高三下学期3月考试数学试题
23-24高二上·上海·课后作业
解题方法
3 . 过抛物线
的焦点的倾斜角为
的直线
与抛物线交于
两点,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ee6d27707fddf72edcbae4ea2d6b5c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/756b7387cdb25e370c904d1f0a39f606.png)
您最近一年使用:0次
名校
解题方法
4 . 已知抛物线
是它的焦点.
(1)过焦点
且斜率为
的直线与抛物线
交于
两点,求线段
的长;
(2)
为抛物线
上的动点,点
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/731ba6e4db0782305d8076ab39b5b7d8.png)
(1)过焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)
![](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/1f13bf66fc845b115de4ec45b4be0e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62bb01d8199bedc5c55c030760d07787.png)
您最近一年使用:0次
5 . 已知抛物线
的顶点在原点,对称轴是坐标轴,它的准线过双曲线
的左焦点,斜率为
的直线
经过抛物线的焦点
,且与抛物线交于不同两点
,
.
(1)求抛物线
的方程;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ffb877445206ef92ce21c0856c5408e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd1dceb9abf947f0e8dd26f7999f9f47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8785ddf9754c2df0a2b53e114410ce75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
解题方法
6 . 已知抛物线
过点
.
(1)求抛物线
的方程,并求其准线方程;
(2)过该抛物线的焦点,作倾斜角为
的直线,交抛物线于
两点,求线段
的长度.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df40ba57bb5819b4aaa38d514500052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25059a7a9c09947e44aa1f957dc79ba5.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过该抛物线的焦点,作倾斜角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/260200d547998bcac50a4a491382e7f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e4e4c7a79d9d3cdb9ac5949d53e33e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2023-03-06更新
|
612次组卷
|
8卷引用:上海市向明中学2021-2022学年高二下学期期末数学试题
上海市向明中学2021-2022学年高二下学期期末数学试题上海市川沙中学2023届高三上学期期末数学试题上海外国语大学附属外国语学校2022-2023学年高二下学期期中数学试题湖北省部分省级示范高中2022-2023学年高二上学期期末数学试题四川省绵阳南山中学2022-2023学年高二下学期第一次质量检测文科数学试题新疆维吾尔自治区塔城地区2022-2023学年高二下学期开学质量检测数学试题黑龙江省大庆市大庆中学2022-2023学年高二下学期开学考试数学试题(已下线)第09讲 拓展三:圆锥曲线的方程(弦长问题)-【帮课堂】2023-2024学年高二数学同步学与练(人教A版2019选择性必修第一册)
7 . 设抛物线
的焦点为
,过
且垂直于
轴的直线与抛物线交于
,
两点,已知
.
(1)求抛物线
的方程;
(2)过点
作方向向量为
的直线与曲线
相交于
,
两点,求
的面积
并求其值域;
(3)设
,过点
作直线与曲线
相交于
,
两点,问是否存在实数
使
为钝角?若存在,请求出
的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.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/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01687a60f9d66e2fe97edb9c6be1653d.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3492b97c5b85da3965f86239ede4e4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ba5c9c919439cc44c97f924df50202.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/2eaceb8d6c6927e14d9ac7a557a2b11d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a5a9c19a17aebbc56e93d39e2b47df5.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8649ce18c628d0e03e72cef541f8284f.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/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36719f1e764ee0e719b65c49fae84677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
解题方法
8 . 已知斜率为
的直线
经过抛物线
:
的焦点
,且与抛物线
交于不同的两点
、
.
![](https://img.xkw.com/dksih/QBM/2021/12/21/2877362589736960/2878134138175488/STEM/468255571d104733951161613f2c62fe.png?resizew=213)
![](https://img.xkw.com/dksih/QBM/2021/12/21/2877362589736960/2878134138175488/STEM/cdba3150b09b41fb81ee9f2716429660.png?resizew=201)
(1)若点
和
到抛物线准线的距离分别为
和
,求
;
(2)若
,求
的值;
(3)点
,
,对任意确定的实数
,若
是以
为斜边的直角三角形,判断符合条件的点
有几个,并说明理由.
![](https://img.xkw.com/dksih/QBM/2021/12/21/2877362589736960/2878134138175488/STEM/10474160ff6b4e2a83573f2cf2887db3.png?resizew=13)
![](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/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://img.xkw.com/dksih/QBM/2021/12/21/2877362589736960/2878134138175488/STEM/468255571d104733951161613f2c62fe.png?resizew=213)
![](https://img.xkw.com/dksih/QBM/2021/12/21/2877362589736960/2878134138175488/STEM/cdba3150b09b41fb81ee9f2716429660.png?resizew=201)
(1)若点
![](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/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6d61dc3b46aaff6993b2e49c29a7efc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b10c64cc584dde9a132ab54c6981cce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4b0c4b339f44bbac0e275eb0718234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
2021-12-22更新
|
860次组卷
|
5卷引用:上海市浦东新区2022届高三上学期一模数学试题
上海市浦东新区2022届高三上学期一模数学试题上海市复旦大学附属中学2023届高三下学期开学考试数学试题(已下线)热点09 解析几何-2022年高考数学【热点·重点·难点】专练(新高考专用)(已下线)押全国卷(理科)第20题 圆锥曲线-备战2022年高考数学(理)临考题号押题(全国卷)(已下线)专题19 圆锥曲线 (模拟练)-2
名校
解题方法
9 . 过抛物线
的焦点F的直线交地物线于点A.B(其中点A在第一象限),交其准线l于点C,同时点F是AC的中点
(1)求直线AB的倾斜角;
(2)求线段AB的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
(1)求直线AB的倾斜角;
(2)求线段AB的长.
您最近一年使用:0次
2020-07-05更新
|
220次组卷
|
4卷引用:上海市进才中学2018-2019学年高二上学期期末数学试题
10 . 已知抛物线C的顶点为原点,焦点F与圆
的圆心重合.
(1)求抛物线C的标准方程;
(2)设定点
,当P点在C上何处时,
的值最小,并求最小值及点P的坐标;
(3)若弦
过焦点
,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd767240a603ca0c0db5567707eb704.png)
(1)求抛物线C的标准方程;
(2)设定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8042f1b6b556402ac07fc69d92e21924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2777de400b45fee1fb1262544d3fbcb.png)
(3)若弦
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5457baa379234afd6db167db272bf5d0.png)
您最近一年使用:0次
2018-07-03更新
|
1087次组卷
|
3卷引用:【全国市级联考】上海市浦东新区2017-2018学年高二下学期期末考试数学试题