名校
解题方法
1 . 若
,则下列不等式一定成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2023-01-05更新
|
415次组卷
|
2卷引用:2023年2月安徽省普通高中学业水平考试数学模拟试题(三)
真题
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2 . 若对任意
,不等式
恒成立,则实数a的取值范围是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae1a51724103ff1e3efa476e6c951ba0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-06-26更新
|
169次组卷
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3卷引用:2007年普通高等学校招生考试数学(理)试题(安徽卷)
2011高一·安徽蚌埠·学业考试
3 . 已知函数
.
(1)在图的坐标系中画出
的图象;
![](https://img.xkw.com/dksih/QBM/2011/5/20/1570213716729856/1570213721702400/STEM/62f5b2cd20ce42bab46f5660d4356ed3.png?resizew=259)
(2)若
的最小值为
,当正数
,
满足
时,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9527ed65d2740d81ea949515c7ebd954.png)
(1)在图的坐标系中画出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://img.xkw.com/dksih/QBM/2011/5/20/1570213716729856/1570213721702400/STEM/62f5b2cd20ce42bab46f5660d4356ed3.png?resizew=259)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.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/df8acc7885b7af2fccf3fb1056066203.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219ba6c8a1b54598db1a78cab28d9d30.png)
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