题目
题型:不详难度:来源:
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023090016-47295.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023090016-90087.png)
∴m2+n2=
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023090016-29826.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023090017-14903.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023090017-51833.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023090017-62695.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023090017-35459.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023090017-51833.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023090017-62695.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023090017-35459.png)
核心考点
试题【设m,n∈R,若直线l:mx+ny-1=0与x轴相交于点A,与y轴相交于点B,且l与圆x2+y2=4相交所得弦的长为2,O为坐标原点,则△AOB面积的最小值为_】;主要考察你对圆与圆的位置关系等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023090011-38716.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023090005-84480.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023090005-16007.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023090005-56448.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023090005-52093.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023090006-22589.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023085959-60189.png)
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