题目
题型:填空题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060707-25891.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060707-27313.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060707-59309.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060707-12071.png)
解析
试题分析:令
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060708-51504.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060708-63526.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060708-78156.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060709-29920.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060709-20540.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060709-78395.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060709-42679.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060710-97736.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060710-22308.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060710-12915.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060710-54749.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060711-14534.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060707-12071.png)
点评:要求解含参数的二次不等式,要确定分类标准,分情况讨论.
核心考点
试题【若不等式的解集为,则实数的取值范围是 。】;主要考察你对一次函数的图象和性质等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060704-45169.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060704-54225.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060704-19035.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060701-78896.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060701-27179.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060702-98512.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060658-69258.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060658-73339.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060658-35474.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060655-74488.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060655-13596.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060656-62213.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060651-22315.png)
①当
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060651-18498.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060651-93113.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060651-95634.png)
②当
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060652-10440.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060652-13997.png)
(I)求
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060652-41210.png)
(Ⅱ)求
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060651-93113.png)
(Ⅲ)求最大的实数m(m>1),使得存在实数t,只要当
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060652-13527.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819060652-28668.png)
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