解题方法
1 . 已知抛物线
=
焦点坐标为
.
(1)求抛物线
的方程;
(2)已知点
,设不垂直于
轴的直线
与抛物线
交于不同的两点
,
,若
轴是
的角平分线,求证:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04d0e17395daa2ead6688c2b3748a282.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d4fc026d257756c112b4775a95ccd94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80bb593d933cbc878986a8bb88cd2c2b.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/607764e60ecf374a685d0808f81bbfbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b627acc3fd4cf9f4971ed7ada3956f2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2020-07-12更新
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4卷引用:湖北省武汉市江岸区2019-2020学年高三上学期元月调研理科数学试题
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