1 . 已知函数 ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22de0db78b848e327d50f1caf79b5179.png)
(1)判断函数
的零点个数;
(2)比较
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22de0db78b848e327d50f1caf79b5179.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa662f0273f0921c1fa4727f632395.png)
(2)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c5af802aabb3283ca546576d4bce5f3.png)
您最近一年使用:0次
2 . 已知函数
.
(1)求
的极值;
(2)比较
与
的大小,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f53f81bca037a4383c1fab122a3cd3d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc1f050d991d417bf234421e6bb5426d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47656ab1ddf7fc9d2c360a18baa3b554.png)
您最近一年使用:0次
13-14高一上·河南周口·期中
3 . 已知函数
在[0,+∞)上是减函数,试比较
与
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7be60a208eb0c9fa956b93d93952dda2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f95cd39c9fc156c46da89a26f6c28e7b.png)
您最近一年使用:0次