2011·安徽安庆·一模
1 . 已知A、B为抛物线
上的不同两点,F为抛物线C的焦点,若
则直线AB的斜率为
![](https://img.xkw.com/dksih/QBM/2013/7/8/1571269926019072/1571269931352064/STEM/1b31cbc24d2a410b9c6c5b29be9044ff.png)
![](https://img.xkw.com/dksih/QBM/2013/7/8/1571269926019072/1571269931352064/STEM/271534fd8efb4dd9a57b96ba6506acda.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2 . 已知O为坐标原点,抛物线y2=2x与过焦点的直线交于A,B两点,则
的值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634ca185a6fd5b53d5d6f0db154d6d73.png)
A.![]() | B.![]() | C.3 | D.![]() |
您最近一年使用:0次
2012-07-20更新
|
851次组卷
|
6卷引用:2011-2012学年安徽省芜湖一中高二下学期期中考试理科数学试卷
(已下线)2011-2012学年安徽省芜湖一中高二下学期期中考试理科数学试卷【全国百强校】湖南省岳阳市第一中学2017-2018学年高二下学期期末考试数学(理)试题河北省武邑中学2018-2019学年高二上学期期中数学(理)试题(已下线)对点练63 圆锥曲线中定值定点等问题-2020-2021年新高考高中数学一轮复习对点练2017-2018学年甘肃省兰州市第一中学高三上学期期中考试数学 理2023版 北师大版(2019) 选修第一册 突围者 第二章 第三节 课时2 抛物线的简单几何性质
2012·上海·二模
3 . 若已知曲线
:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0acac8b38a645b428474006d802af038.png)
,圆
:
,斜率为
的直线
与圆
相切,切点为
,直线
与曲线
相交于点
,
,则直线
的斜率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0acac8b38a645b428474006d802af038.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6057a03591391cf2740d3dd9a332b41a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76426b7e71f15f6e801b00d1f72b1030.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/373c6de883755a05781186cb02044ddf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.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/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19efd2f2662ca444c784b69e35f53120.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
A.1 | B.![]() |
C.![]() | D.![]() |
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2010·黑龙江·三模
解题方法
4 . 已知直线
与双曲线
,有如下信息:联立方程组
消去
后得到方程
,分类讨论:(1)当
时,该方程恒有一解;(2)当
时,
恒成立.在满足所提供信息的前提下,双曲线离心率的取值范围是( )
![](https://img.xkw.com/dksih/QBM/2012/7/2/1570909764321280/1570909769711616/STEM/4fc87f79c0824e8c84f477c019643459.png?resizew=87)
![](https://img.xkw.com/dksih/QBM/2012/7/2/1570909764321280/1570909769711616/STEM/0b3fc0c210314003a6f342f2d57e1733.png?resizew=85)
![](https://img.xkw.com/dksih/QBM/2012/7/2/1570909764321280/1570909769711616/STEM/6f2ecaa5142c444cb2aea1156300bb03.png?resizew=95)
![](https://img.xkw.com/dksih/QBM/2012/7/2/1570909764321280/1570909769711616/STEM/bbd3b3fa631148348066103207513346.png?resizew=15)
![](https://img.xkw.com/dksih/QBM/2012/7/2/1570909764321280/1570909769711616/STEM/d2315c9a6c4d4922b50c67059302cb32.png?resizew=123)
![](https://img.xkw.com/dksih/QBM/2012/7/2/1570909764321280/1570909769711616/STEM/8773d5c306b24a3e926165512861422b.png?resizew=41)
![](https://img.xkw.com/dksih/QBM/2012/7/2/1570909764321280/1570909769711616/STEM/9ffe4deccdd04122aa2f8b131d095859.png?resizew=41)
![](https://img.xkw.com/dksih/QBM/2012/7/2/1570909764321280/1570909769711616/STEM/71f9b5d3441b4178ab5f7fb441921244.png?resizew=125)
A.![]() | B.![]() | C.![]() | D.![]() |
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