下列不等关系中,正确的是(
是自然对数的底数)( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff5a8f648d375cc6ccf6649cab698c6.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
更新时间:2022-10-17 23:47:03
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【推荐1】设函数
,
在
上的导数存在,且
,则当
时( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fd6806b47e65fa3f647d38ecff67ba3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bea26ebeb4a4b275128ba41dc9dc878.png)
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【推荐2】达·芬奇的画作《抱银貂的女人》中,女士脖颈上悬挂的黑色珍珠链与主人相互映衬,显现出不一样的美与光泽,达·芬奇提出固定项链的两端,使其在重力的作用下自然下垂项链所形成的曲线称为悬链线.建立适当的平面直角坐标系后,得到悬链线的函数解析式为
,双曲余弦函数
则以下正确的是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/9b565869-49c7-4e73-bf3a-887ff4c0f571.png?resizew=111)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c579c69d909402f61b86f9e7bec925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5c0afd1e3079b32e1acc897822f398b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/14/9b565869-49c7-4e73-bf3a-887ff4c0f571.png?resizew=111)
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【推荐1】已知函数
的定义域为
,导函数为
,满足
,(
为自然对数的底数),且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c00cbdc67379e184e0588024d32bdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3471484b64504fc545398f52be830010.png)
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【推荐3】设函数
,
在
上的导数存在,且
,则当
时( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fd6806b47e65fa3f647d38ecff67ba3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bea26ebeb4a4b275128ba41dc9dc878.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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