名校
1 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64303f0b28e07b00124aeb2c52a25c66.png)
(1)若不等式
对任意的
恒成立,求
的取值范围;
(2)当
时,记
的最小值为
,正实数
,
,
满足
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64303f0b28e07b00124aeb2c52a25c66.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a1c6357d636da94e3cee61bb07d978d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5085f1c470e3e793af0d740085403610.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/989680e6b74504b71f5ece8771c5301d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1092875e251d295bc68827d8ed71e43.png)
您最近一年使用:0次
2020-06-01更新
|
307次组卷
|
2卷引用:天津市2021届高三高考模拟数学试题
名校
解题方法
2 . 设函数
,其中
.
(1)若函数
在
处有极小值
,求
的值;
(2)若
,设
,求证:当
时,
;
(3)若
,对于给定
,其中
,若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17b7d03ea4e90568c256de67cb4dc327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/127e88c3aa14648770487a295909cf95.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5a198944c430230661eea767c6bd7de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ff2912fd8d93b6e692936d95b727c5.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13c34b9e054b33f5d43986e3876a13ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e781a085674b519077d9caf085424f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b5fdaf40c6270adb8f5b08a20a0f798.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67abcd075710814b8858bf7b210b4ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f542e6e69af89fbe4ec83ecf80566d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9e661b1fae296a7ce1ebb7d5722da5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bdea14568ebb6f40c464a0b55184fbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2017-08-07更新
|
131次组卷
|
3卷引用:天津市十二重点中学2017届高三毕业班联考(二)数学(理)试题