题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102847-47285.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102847-30324.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102849-97910.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102849-69445.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102849-12300.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102850-14679.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102850-89811.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102850-55842.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102850-77721.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102850-70769.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102851-38174.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102851-52093.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102851-38174.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102851-42997.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102852-82252.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102852-15781.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102851-52093.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102852-81064.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102852-49904.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102852-18765.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102852-18765.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102852-15781.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102751-61784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102751-72992.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102751-89809.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102752-81945.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102751-89809.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102751-61784.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102752-41770.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102752-95750.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102752-95068.png)
(1)当
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102751-89809.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102752-11004.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102753-42595.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102753-76083.png)
(2)求证:直线
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102753-76054.png)
(3)当
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102753-40100.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102753-76083.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102751-89809.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102753-88220.png)
(1)求动点P的轨迹方程;
(2)若直线mx一y+2m+5=0(m∈R)与点P的轨迹交于A、B两点,问:当m变化时,以线段AB为直径的圆是否会经过定点?若会,求出此定点;若不会,说明理由.
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102725-22474.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102725-79647.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102725-11755.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102726-75189.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102726-90889.jpg)
A. 1 B.
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102726-40626.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102727-31403.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102727-82567.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102716-12099.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102717-70214.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102717-39401.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102717-27898.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102716-12099.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102718-64387.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102718-57392.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102718-92000.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102718-66826.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102717-27898.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102718-50543.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102719-26800.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102719-45177.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102719-57209.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102719-79613.png)
(2)是否存在定点
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102720-55796.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102717-27898.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102720-55796.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102720-56139.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102720-56953.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191025/20191025102720-55796.png)
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