1 . 若正数
满足
,则
的取值范围是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f5152368dc55742d811b620ec2e23f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2 . 已知实数
满足
,c满足以
为边长可以构成三角形.若使该三角形的三个内角中的最大角具有最小值,那么,c应等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663a61ad241d5d874c9a9362f0ee917c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7f5573b30734d65648f61c0a94c98de.png)
A.a | B.![]() | C.![]() | D.b |
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3 . 已知
个正实数
,
且
,令
,
,其中,
,则
、
的大小关系是.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d51f9147b8265c0276c1f2c2659197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e955d6de35f6342943ad8bf358a28cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ac4986d52e343c774ab3dcbae0bd3d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc3d05596d83c5d693065fbdedb7457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2e805ccdd3e326e0f060bc24abb68bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fd86d302564e0e98c68656b309cb1b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/897b606fdc64a88a0938d3d60c3ea3e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
A.![]() | B.![]() |
C.随![]() | D.完全不确定 |
您最近一年使用:0次
4 . 当
时,
,
,
的大小关系是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca542e78b7d77d008c9c4752afa91a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a410d99e6f3b2544b78d115460b4f945.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46ccc7e7e37f2a551fd903ca47f927b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dc11f542535d934e84b4e879bd1f2ce.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
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5 . 使得
成立的最小正整数
是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/668091fe47199e9ef57b8080cc6f8fff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.4 | B.5 | C.6 | D.7 |
您最近一年使用:0次