1 . 已知
,
.
(1)证明:
;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff6838d84b68c6f0d3b93b196d9b08d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bcc307b38243d468d3db333e1ac349b.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dcd1237e5bef3ce5e33598735a2efab.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae7b79a5dc409f945ecab0c1f2c4aeac.png)
您最近一年使用:0次
名校
2 . 已知函数
,且对任意的
,
.
(1)求
的取值范围;
(2)若
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b915088fae51f08d1e45a9e9d4bf5554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2766ff1b3629e90c0ee01a93b97b2b2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0588c80fa0ee2598f12eb7725c2e406.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667b619c54f1eb12cb021b199001c411.png)
您最近一年使用:0次
2020-03-23更新
|
678次组卷
|
5卷引用:重庆市第八中学2019-2020学年高三下学期第3次(4月)月考数学(文)试题
名校
3 . 设函数
,
.不等式
的解集为
.
(1)求
;
(2)当
,
时,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/484471931ede416b28ae861a0c6f2fa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fbc901cbdb68130ddac3174583dd93c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dab92728b35ed5798e07a2b0095bfcc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afcba84803fa109999ca5cf589a740af.png)
您最近一年使用:0次
2016-12-04更新
|
674次组卷
|
4卷引用:2016届重庆一中高三下学期3月月考文科数学试卷