题目
题型:不详难度:来源:
(2)已知直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142728-74765.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142728-34137.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142728-69265.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142729-37643.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142729-62237.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142729-30646.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142729-56566.png)
解析
试题分析:(1)设点
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142730-61160.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142730-24286.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142730-96824.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142728-74765.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142730-67573.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142730-67573.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142730-67573.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142730-50783.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142731-90413.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142731-29491.png)
试题解析:解:(1)(略) 6分
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142731-50733.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142731-53072.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142732-14066.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142732-88900.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142729-56566.png)
经检验均符合题意,故
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142732-88900.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142729-56566.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142724-10782.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142725-33027.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142725-87215.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142724-10782.png)
A.-10 | B.17 | C.5 | D.2 |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142715-33001.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142716-97074.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142716-49367.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142712-93564.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142712-67919.png)
且与直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022142712-57576.png)
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