题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020708-59274.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020709-14829.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020709-67526.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020709-57900.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020709-51731.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020709-22916.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020710-69082.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020710-18764.png)
解析
试题分析:将直线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020708-59274.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020710-60341.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020710-43891.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020709-14829.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020711-81247.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020711-84696.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020711-89066.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020711-13479.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020712-16320.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020712-76804.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020712-47886.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020712-85438.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020713-25252.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020713-11957.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020713-63950.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020710-18764.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020703-44071.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020704-53332.png)
(1)求a的值及直线l的直角坐标方程;
(2)圆C的参数方程为
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020704-33445.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020657-27799.png)
(1)求曲线C的直角坐标方程与直线l的普通方程;
(2)设曲线C与直线l相交于P,Q两点,以PQ为一条边作曲线C的内接矩形,求该矩形的面积.
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020644-61253.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020644-38518.png)
(1)求点A,B,C,D的直角坐标;
(2)设P为C1上任意一点,求|PA|2+|PB|2+|PC|2+|PD|2的取值范围.
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020640-40516.png)
(1)求圆C的极坐标方程;
(2)P是圆C上一动点,点Q满足3
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108020640-43588.png)
A.![]() | B.![]() | C.(1,0) | D.(1,π) |
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