1 . 已知抛物线
的焦点为
,直线
与抛物线交于
两点,与
轴交于点
为坐标原点,若
.
(1)求抛物线的方程;
(2)求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21be4ca5919e23d17c902a3b09b0f0bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c48c439ef919695d2660d0a63e6eb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/242f34ab3f00b22bc5dd11b04a911717.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/959e4ea086a1253c17fd87af1aceac40.png)
(1)求抛物线的方程;
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
您最近一年使用:0次
2017-05-21更新
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1314次组卷
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4卷引用:2016-2017学年黑吉两省八校高二上期中数学(理)试卷