2014高三·全国·专题练习
名校
解题方法
1 . 已知
是抛物线
上一点,经过点
的直线
与抛物线
交于
,
两点(不同于点
,直线
,
分别交直线
于点
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(1)求抛物线方程及其焦点坐标,准线方程;
(2)已知
为原点,求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05a71e8f88d276a810aa245ed5d0cb39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df40ba57bb5819b4aaa38d514500052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8ac8fa800c00933279f2b20e5034438.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ca4652de1332a36da699973222f5e97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1642eec556eb252de9c1ab7bb5ca90b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccaee8f228ff24e7c89879bb5b999cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(1)求抛物线方程及其焦点坐标,准线方程;
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27935c1ef4df2d52ac697678a3c8f39d.png)
您最近一年使用:0次
2016-12-02更新
|
1864次组卷
|
4卷引用:2016-2017学年安徽省阜阳市临泉县第一中学高二1月学科竞赛数学(文)试卷
2016-2017学年安徽省阜阳市临泉县第一中学高二1月学科竞赛数学(文)试卷安徽省阜阳市临泉县第一中学2016-2017学年高二1月学科竞赛文数试题(已下线)2014届人教版高考数学文科二轮专题复习提分训练16练习卷2014-2015学年河北省正定中学高二上学期期末考试数学试卷