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)
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2020-03-09更新
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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