题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021248-29026.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021248-95676.png)
(1)当
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021248-47087.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021248-11899.png)
(2)当直线
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021248-11899.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021248-28026.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021249-16461.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021249-20395.png)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021249-40905.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021249-13465.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021249-10957.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021249-10957.png)
(2)根据圆心到直线的距离小于或等于半径建立关于a的不等式,解出角
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021248-28026.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021237-40378.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021238-75353.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021238-22839.png)
(1)求椭圆E的方程;
(2)求
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021238-55687.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021238-71307.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021238-71157.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021231-74607.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021232-93027.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021232-26859.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021232-83462.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021232-40437.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021233-88276.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021233-80045.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021225-45588.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021225-53837.png)
(1)若方程
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021226-18698.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021226-20528.png)
(2)若圆
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021226-18698.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021226-35338.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021226-17470.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021226-75743.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021226-20528.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021214-89690.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021214-26012.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021215-49250.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021214-89690.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021215-59601.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021215-36923.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021215-62487.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021215-68485.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021214-89690.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021215-71315.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021215-54052.png)
(Ⅰ)求椭圆
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021214-89690.png)
(Ⅱ)求证:直线
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021215-31806.png)
(Ⅲ)求
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021215-86489.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021205-99198.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191026/20191026021205-21467.png)
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