题目
题型:单选题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052733-82765.png)
A.(–1, 2) | B.(–∞, –1)与(1, +∞) |
C.(–∞, –2)与(0, +∞) | D.(–2,0) |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052733-75743.png)
核心考点
试题【函数的单调递减区间是. ( )A.(–1, 2)B.(–∞, –1)与(1, +∞)C.(–∞, –2)与(0, +∞)D.(–2,0)】;主要考察你对函数的单调性与最值等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052722-63643.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052722-78968.png)
(1)求正实数a的取值范围;
(2)比较
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052722-36671.png)
(3)求证:
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052722-53008.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052719-66928.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052719-81757.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052719-13234.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052720-25573.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052716-86920.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052716-80499.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052716-36562.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052717-12953.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052717-61497.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052717-60034.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052714-67679.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052704-65124.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052704-38576.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052705-68394.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052704-38576.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052705-53668.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052705-40971.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052705-14626.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052705-33706.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052706-85307.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052706-86358.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052706-64976.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052706-69992.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052707-68021.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052707-28157.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052707-89856.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052708-33289.png)
(1)用
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052708-15263.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052708-89295.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052705-14626.png)
(2)用
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052708-15263.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052708-15630.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052706-86358.png)
(3)写出四边形
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052708-20329.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052708-15263.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052709-76213.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052709-76213.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190818/20190818052709-90365.png)
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