名校
1 . 已知函数
,
.
(1)令
,求函数
的零点;
(2)令
,求函数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d900b106c2b44b211c60b0ba9c2cf6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3e9eed54554b0ecd5d2c5cdc5da6391.png)
(1)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb80bd0df56843e5cc336155b1f19fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074a6e17404d5de78af76553a66bab96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/932a4f4875c0d88716e36ac7f2eb3288.png)
您最近一年使用:0次
2020-03-09更新
|
343次组卷
|
4卷引用:贵州省毕节市赫章县2021-2022学年高二上学期期末教学质量监测数学(理)试题
名校
解题方法
2 . 函数
是实数集R上的奇函数,当
时,
.
(1)求
的值和函数
的表达式;
(2)求证:方程
在区间
上有唯一解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5c4a84fe979c7af124db3cfc7ca9459.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a32822a106d217ffdec43557a236f786.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求证:方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
您最近一年使用:0次