解题方法
1 . 已知椭圆
的左,右焦点分别为
,上顶点为
,且
,点
在椭圆
上,线段
与
交于
,
,则直线
的斜率为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f881ac047281bdbc909e640525c2f43e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4706d2c9205ffc8fab60b2612a83cbf7.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/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3656055f5256cd06e636ea96e9f89c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7351c4b8580f663d4eda1d204ad9082.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
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解题方法
2 . 已知抛物线
:
过点
.
(1)求抛物线
的方程;
(2)过点
且斜率为
的直线
交抛物线
于
,
两点,求证:
.
![](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/2e1624ce2eee9487238b41c3c7e8ffc1.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/d56ab70e602f2e2e291df643ab209162.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8198c3b302b3820e86763428eb1e91cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3463ced6030af957f13f9ba05b977c1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c0b06dc01c30d13f64be2ac6a1d811e.png)
您最近一年使用:0次
2022-11-04更新
|
530次组卷
|
2卷引用:江苏省南通市海安市实验中学2022-2023学年高二上学期期中数学试题
解题方法
3 . 已知点
,直线
,动点M到F的距离是它到直线l距离的2倍.
(1)求动点M的轨迹C的方程;
(2)过F作直线交曲线C于点A,B,过点A作直线l的垂线,垂足为D,连结BD,证明直线BD过定点,并求出这个定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14436636ec6a7aec09cb63cecf6e970d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b11449658adfc07dcf4fc0b25e7ed7c9.png)
(1)求动点M的轨迹C的方程;
(2)过F作直线交曲线C于点A,B,过点A作直线l的垂线,垂足为D,连结BD,证明直线BD过定点,并求出这个定点.
您最近一年使用:0次
解题方法
4 . 已知椭圆
的焦距为
,且一个焦点与短轴的两个端点构成正三角形.
(1)求椭圆E的方程;
(2)直线
交椭圆E于A,B,点P在线段AB上移动,连OP交椭圆于M,N,过P作MN的垂线交x轴于Q,求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
(1)求椭圆E的方程;
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2f3fa679bb55ded25a9b72a8e788cb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed283a253b61df01f2a1cdc0cd8003f3.png)
您最近一年使用:0次
解题方法
5 . 已知椭圆
的左、右焦点分别为
,
,点
在椭圆
上,且
,
(1)求椭圆
的方程;
(2)
为椭圆左、右顶点,
的坐标为
,连接
交椭圆
于点
,若
为线段
的中点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a216c108cb54c2b3845ac7dce1ed10a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e99b2e9d39d0141d7ae9cafaf7624edb.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42a1fa2d20049d6a25d41fbce8340ed1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9317c3f6b7e26bc37d1bc05a2f3d5418.png)
您最近一年使用:0次
6 . 如图所示,一隧道内设双行公路,其截面由一个长方形和抛物线构成,长方形高度
.为了行车安全,要求行驶车辆顶部(设其为平顶)与隧道顶部在竖直方向的高度差至少有
.已知行车总宽度
(图中数据的单位:m),
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/7babbf3d-6c59-4846-bc39-bfbf27feccd2.png?resizew=139)
(1)建立适当的直角坐标系,求抛物线的方程;
(2)求车辆通过隧道时的限高(精确到
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99e3cc7c707cfd4e8e26df1c69076638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d77ecfc44c94b32a7fcc565e2ebbe4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/761a9826499ca721fb1392a5bc75063e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/3/7babbf3d-6c59-4846-bc39-bfbf27feccd2.png?resizew=139)
(1)建立适当的直角坐标系,求抛物线的方程;
(2)求车辆通过隧道时的限高(精确到
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ae4297f60550c210d7fa72333b690a.png)
您最近一年使用:0次
名校
解题方法
7 . 已知抛物线
的焦点为F,准线为l,过抛物线上一点M作l的垂线,垂足为A,x轴上一点
,满足
,则
的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/316ba5cbb31299d683ac6c7dd795db85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4da914e345562226bf3c51feca37a469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a11cb104b04c4e6a1be700e81da279a.png)
您最近一年使用:0次
2022-11-01更新
|
654次组卷
|
3卷引用:江苏省南通市如皋市2022-2023学年高二上学期教学质量调研(一)数学试题
江苏省南通市如皋市2022-2023学年高二上学期教学质量调研(一)数学试题重庆市南开中学校2022-2023学年高二上学期网课质量检测数学试题(已下线)3.3.2 抛物线的简单几何性质【第二练】“上好三节课,做好三套题“高中数学素养晋级之路
8 . 椭圆
的左、右焦点分别为
,
,E上在第二象限的点P,使
为等腰三角形,则点P的坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bef854111c4a9c5d7372d0ae31a3f4e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
您最近一年使用:0次
名校
解题方法
9 . 已知双曲线
,直线
,若直线
与双曲线只有一个公共点,则
的取值集合为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1892b7c3cd7bea116f532f66fba44662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acd55f837e9c4e6bba1163ef13edd09b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2022-11-01更新
|
325次组卷
|
3卷引用:江苏省南通市如皋市2022-2023学年高二上学期教学质量调研(一)数学试题
10 . 设A,B是抛物线
上的两点,
为抛物线的焦点坐标,O是坐标原点,
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
A.直线AB过定点![]() |
B.O到直线AB的距离不大于![]() |
C.![]() |
D.连接AF,BF并延长分别交抛物线C于D,E两点,则![]() |
您最近一年使用:0次
2022-11-01更新
|
758次组卷
|
2卷引用:江苏省南通市如皋市2022-2023学年高二上学期教学质量调研(一)数学试题