题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221043-93477.gif)
(I)求
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221043-63669.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221044-43061.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221044-51903.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221044-47031.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221044-48423.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221044-32526.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221045-94801.gif)
(Ⅱ)①当x=-1时,
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221045-55561.gif)
②
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221045-34451.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221045-89040.gif)
综上所述,不等式组
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221045-15908.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221044-48423.gif)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221036-51965.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221036-91303.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221037-20208.gif)
①
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221037-99315.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221037-60519.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221037-14806.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221037-69763.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221001-15690.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221001-22157.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221001-37442.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205221002-63859.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220956-13682.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220956-61950.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220957-57167.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220957-57167.gif)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220949-51055.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220949-51055.gif)
1)函数
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220949-10315.gif)
2)若对任意
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220949-75312.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220949-40869.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220949-51055.gif)
3)若
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220949-51055.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220949-75312.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220950-62995.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220949-51055.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220950-70254.gif)
4)对任意
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220950-59207.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220950-58682.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220950-81219.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220949-51055.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220951-60116.gif)
其中正确命题的序号是_________.
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220942-69242.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220942-15249.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20200205/20200205220943-98932.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
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