已知正实数m,n满足
,则
的最大值为2,则定值
是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305eab9c22e2de31054f7d9100589e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4404b06c69d2d382442a48e11fa1e4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.2 | B.![]() | C.![]() | D.![]() |
更新时间:2023-11-29 21:18:23
|
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【推荐1】已知
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【推荐2】设正实数x,y满足
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单选题
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适中
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【推荐3】已知直线
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