题目
题型:解答题难度:一般来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083010-85177.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083010-79402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083011-59223.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083011-36032.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083011-37689.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083011-82244.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083011-50692.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083012-33279.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083012-54792.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083011-50692.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083012-53648.png)
解析
试题分析:解出集合A,B的范围,特别要注意B集合中含对数函数的解法,(1)先求出
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083012-45759.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083012-30352.png)
试题解析:(1)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083013-84540.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083013-89455.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083013-19688.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083013-41621.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083012-54792.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083012-33279.png)
(2)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083013-84540.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083013-36535.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083012-54792.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083011-50692.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083012-53648.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083007-31914.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083007-41525.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083007-47067.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083007-92789.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083003-20078.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083004-14273.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083004-90167.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083000-51791.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083000-63111.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817083001-70970.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817082956-13105.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817082956-99862.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817082956-80938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817082952-14282.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817082952-46376.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817082953-19892.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817082953-86918.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817082953-36729.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817082953-85300.png)
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