若
,
,且
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e80606a1e68ac02db063a00407fa2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69a4855e41722215143ba08691e3485b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd2ca6f6f193237e2cf85dc156956af7.png)
A.43 | B.49 | C.39 | D.36 |
更新时间:2023-10-13 12:35:37
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单选题
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适中
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名校
【推荐1】已知函数
,若
(其中
),则
的最小值为( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1784986b8e34a552150402b37eeada3e.png)
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A.![]() | B.![]() | C.2 | D.![]() |
您最近一年使用:0次
单选题
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适中
(0.65)
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解题方法
【推荐2】已知
,
是方程
的两个不等实根,则
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07ce9a002fecb285781892ff7f5c85d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2929ac996d1fe92a1709d574911cd399.png)
A.2 | B.![]() | C.![]() | D.3 |
您最近一年使用:0次
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适中
(0.65)
【推荐1】已知实数
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A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
单选题
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适中
(0.65)
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【推荐1】已知函数
(
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9468f2c7f4d33dd640b9c214abb47b81.png)
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适中
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【推荐2】已知直线
:
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A.12 | B.![]() | C.15 | D.![]() |
您最近一年使用:0次