名校
解题方法
1 . 已知
,
.
(1)当
时,求不等式
的解集;
(2)若
,
,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/551a02ec895d161dee817ce7befa5254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90a7e93ad4e0c0dbfa22e13764e5367.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b05cf23f15517e7b65a5db887b0e2ed.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac0b661e954284129dafa03668a6f907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c9545be376f04600d643cbd520a520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4aeed89faf0ba940c4ce65c809ecf2.png)
您最近一年使用:0次
2022-03-01更新
|
483次组卷
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6卷引用:山西省吕梁市2022届高三下学期开年摸底联考(全国卷1)数学(理)试题
名校
解题方法
2 . 对一切正数
,不等式
恒成立,则常数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5fd2aee140124b6fa13f2601b3c1cb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-09-12更新
|
673次组卷
|
3卷引用:山西省应县第一中学校2021届高三上学期开学考试(高二下学期期末)数学(理)试题