题目
题型:解答题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062054-66474.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062055-32336.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062055-44620.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062055-32614.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062055-73007.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062055-97945.png)
(2)c为何值时,
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062056-60373.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062056-58446.png)
⑵当
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062056-57744.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062056-60373.png)
解析
(1)由
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062055-32336.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062055-44620.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062055-32614.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062055-73007.png)
知:
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062056-46346.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062056-48749.png)
(2)由于由
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062057-16003.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062057-24708.png)
要使
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062057-32686.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062057-26020.png)
那么可知参数的范围。
核心考点
试题【已知:,当时,;时,(1)求的解析式.(2)c为何值时,的解集为R.】;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/20190819/20190819062052-93180.png)
(1)、
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062052-86296.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062052-90845.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062052-56017.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062048-20223.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062048-33448.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062048-45927.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062048-71738.png)
(2)求函数
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062048-20223.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062049-90391.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062043-25565.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062043-28512.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062043-30020.png)
(Ⅰ)求
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062043-25565.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062044-33528.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062043-25565.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062044-35743.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062044-13841.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062041-57089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062037-76701.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062038-94689.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062038-73274.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062038-56781.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062038-40922.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190819/20190819062038-27576.png)
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