解题方法
1 . 设
,
,给出下列不等式:
①
;
②![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8805c7fb10703f506ee58d6a23926324.png)
③
;
④
.
其中所有恒成立的不等式序号是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfdb41f4df7aef3a4052edba35959f8d.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8805c7fb10703f506ee58d6a23926324.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1b1429463f1a6feaf67dfb116069b87.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b33c5a24d96f900511ab6e6e033f7c7.png)
其中所有恒成立的不等式序号是
您最近一年使用:0次
2022-11-09更新
|
169次组卷
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2卷引用:陕西省渭南市三贤中学2022-2023学年高二上学期期中数学试题
名校
2 . 已知
,证明:
(1)
;
(2)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/846fed98a219097783e0ca2f41483cac.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f0fe162b43ae1fc679d65cfb11e27a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5543c058f0418510ee7d60d6bb193f19.png)
您最近一年使用:0次
2022-08-28更新
|
585次组卷
|
6卷引用:陕西省渭南市华州区咸林中学2022-2023学年高三上学期开学摸底考试文科数学试题