已知抛物线
,过
的直线
与抛物线
相交于
两点.
(1)若
,求直线
的方程;
(2)求证:
为定值,并求出该定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa2c731aaa4005382d5b4324e29fbb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaca265b624f276effef431d9653362b.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/01c74a907dda6bb7d9d56d009d9df253.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4661a75533ca56b0ca2d9f23e6106f9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6af8a6b2c0a7a781732a978fded56e78.png)
更新时间:2020-12-29 15:49:57
|
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