1 . 已知抛物线
的准线方程为
,焦点为F,准线与x轴的交点为
,
为
上一点,且满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e59e07e7f6425b2f93fe1e4f1295ee41.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b556b1a9944719cf423e90f8df16c773.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/c2fca2745013ca7ccf7c3f80a47812d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e59e07e7f6425b2f93fe1e4f1295ee41.png)
您最近一年使用:0次
2 . 若抛物线
上一点
到其焦点的距离为
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b21872d8f6a518e0a2993ccf7a795ed2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec599eecaeb5c54c74f7c2a51f69b586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c57bbef89a37f1a3808c0ceeac0c22.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-06-04更新
|
482次组卷
|
6卷引用:青海省西宁市大通回族土族自治县2021届高三二模数学(理)试题
青海省西宁市大通回族土族自治县2021届高三二模数学(理)试题广西南宁市六校联考2020-2021学年高二下学期期末数学试题(已下线)2.4 抛物线(基础练)-2021-2022学年高二数学同步训练精选新题汇编(人教A版选修2-1)(已下线)考点32 抛物线-备战2022年高考数学(理)一轮复习考点微专题(已下线)考点03 抛物线-2022年高考数学(文)一轮复习小题多维练(全国通用)(已下线)3.3.1 (整合练)抛物线及其标准方程-2021-2022学年高二数学考点同步解读与训练(人教A版2019选择性必修第一册)
3 . 若抛物线
上的点
到焦点的距离为4,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b637ac761e96cae482e3c84682429a.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c2f156b05838deaae6a35acad242af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddf1a6605e782f22ef670c448ed9e210.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b637ac761e96cae482e3c84682429a.png)
您最近一年使用:0次
2021-03-10更新
|
464次组卷
|
3卷引用:青海省西宁市大通回族土族自治县2021届高三一模模拟考试数学(文)试题
解题方法
4 . 抛物线
上一点
到焦点F的距离为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6141624706a77263331996127697161a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a135ec3dc30ab0fedd9ad4c960cb7def.png)
A.![]() | B.5 | C.![]() | D.33 |
您最近一年使用:0次
2021-01-27更新
|
298次组卷
|
4卷引用:青海省海东市2021届高三上学期第二次模拟考试数学(文)试题
解题方法
5 . 已知抛物线
的焦点为
,过点
的直线
交抛物线于两点
,交抛物线的准线于点
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f2543bed90100ddae314d492e792b2.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f96a2e30d00b58259bbf45b69118c056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655b6a742dbacdab5aaa298007663dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655b6a742dbacdab5aaa298007663dd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a159de0b2d9eb1ae0b7e664e64d3c6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e4e4c7a79d9d3cdb9ac5949d53e33e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28981f38a7eb81aa6337495e417c31ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f2543bed90100ddae314d492e792b2.png)
您最近一年使用:0次