以抛物线
焦点
为端点的一条射线交抛物线于点
,交
轴于点
,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a499bb7ab9d720e663ec50f9355469d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e4f6862ae424098b7670f687d70dcb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
2021·湖北·二模 查看更多[6]
湖北省2021届高三下学期4月调研模拟数学试题安徽省六安市舒城中学2021届高三下学期仿真模拟(二)理科数学试题(已下线)第14题 抛物线的方程及几何性质-2021年高考数学真题逐题揭秘与以例及类(新高考全国Ⅰ卷)湖南省长沙市雅礼中学2022届高三下学期一模数学试题湖南省长沙市雅礼中学2021-2022学年高三下学期月考数学试题(八)重庆市永川北山中学校2023届高三上学期期末数学试题
更新时间:2021-04-29 17:41:30
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【知识点】 抛物线定义的理解
相似题推荐
填空题-单空题
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较易
(0.85)
解题方法
【推荐1】若抛物线
的一点
到其准线的距离为3,则点
到
轴的距离为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
填空题-单空题
|
较易
(0.85)
【推荐2】抛物线
与双曲线上一点
的有共同的焦点
,两曲线在第一象限的交点为
,且
到焦点
的距离为5,则双曲线的离心率
=______ .
![](https://img.xkw.com/dksih/QBM/2016/8/16/1572976691970048/1572976698105856/STEM/ed92c71c46b54ba9a6151ae5e2854626.png?resizew=53)
![](https://img.xkw.com/dksih/QBM/2016/8/16/1572976691970048/1572976698105856/STEM/b7b12ead87fa46b3875e4550e2ecf892.png?resizew=77)
![](https://img.xkw.com/dksih/QBM/2016/8/16/1572976691970048/1572976698105856/STEM/72872c0135b14082bad39e9362734828.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2016/8/16/1572976691970048/1572976698105856/STEM/e9850f232b174957a3bcede1b52c3ac9.png?resizew=71)
![](https://img.xkw.com/dksih/QBM/2016/8/16/1572976691970048/1572976698105856/STEM/3f6c79d6b63740dfaf16d90173d05c0f.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2016/8/16/1572976691970048/1572976698105856/STEM/72872c0135b14082bad39e9362734828.png?resizew=17)
![](https://img.xkw.com/dksih/QBM/2016/8/16/1572976691970048/1572976698105856/STEM/0423c20a23fe42138524c28d929515ee.png?resizew=12)
您最近一年使用:0次