名校
解题方法
1 . 已知两点
,动点
在
轴上的投影是
,且
.
(1)求动点
的轨迹
的方程;
(2)过
作互相垂直的两条直线交轨迹
于
,且
分别是
的中点.求证:直线
恒过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7df24de03ba49795a0d2fbf7f474acf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/057159947deba9128c24aa8999cb6965.png)
(1)求动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2ba2238d6afe0187534155dd9ac48c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acf4c0cf23f0f3291f79a79e90782d78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13d726b14a313e000a81526162f35748.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5f889014cca441d4c55773e0229f6c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fa379773b0244afedf8d855a42838d5.png)
您最近一年使用:0次
2017-04-08更新
|
1026次组卷
|
4卷引用:福建省莆田第一中学2016-2017学年高二下学期期中考试数学(理)试题