名校
1 . 已知函数
,
.
(1)证明:对任意
,
,都有
.
(2)已知
,设
是函数
的零点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61f35cc9cbb97d3fed21c28d3ade436f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff8d9b6533ff319420cdc5e8740b04.png)
(1)证明:对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bf60c5e8996d138198fe74f30ce520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29a7901661c71b40b5601ad0c0f6dacc.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29f60d84eefeb29aa178963d2660c3a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e6a25791c334b8b79ee02c03a73e693.png)
您最近一年使用:0次
2023-11-30更新
|
281次组卷
|
2卷引用:四川省雅安市名山中学2023-2024学年高一上学期12月月考数学试题
解题方法
2 . 设二次函数
.
(1)当
时,求函数
在
上的最小值
的表达式;
(2)若方程
有两个非整数实根,且这两实数根在相邻两整数之间,试证明存在整数
,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cacf4a593a5dd327c323627138d19178.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cc6b9950993503d1bc852e076fa037f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6efacc740d6a5e0678c60efa0e0e035b.png)
您最近一年使用:0次