题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001020-26666.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001020-31602.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001021-80042.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001021-22453.png)
答案
解析
试题分析:根据题意设直线方程为
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001021-12358.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001021-91861.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001022-41706.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001022-69295.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001022-10702.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001022-51581.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001014-40491.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001014-30952.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
A.a2+b2>2ab | B.a+b≥2![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016000959-76564.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001000-81565.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001000-95426.png)
因为
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016000959-76564.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001000-81213.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001000-73599.png)
①
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001000-21256.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001001-79862.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001000-95426.png)
判断该同学解答是否正确,若不正确,请在以下空格内填写正确的最小值;若正确,请在以下空格内填写取得最小值时
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001001-26636.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016001001-38324.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016000947-87635.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016000947-15689.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016000948-35042.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016000948-35977.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016000933-78928.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016000933-97432.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016000934-61700.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016000934-55274.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191016/20191016000934-78387.png)
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