已知函数
,若正实数m,n满足
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7f536c9ef7b38b21d03395272b6000b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0239c220349c4383fa60f5ba968d9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fd1f0ace9ca0b79929e73af6c201c2e.png)
A.1 | B.2 | C.4 | D.8 |
更新时间:2022-02-04 11:42:04
|
相似题推荐
单选题
|
适中
(0.65)
解题方法
【推荐1】已知定义域为
的奇函数
满足
,且当
时,
.则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/045ef1053d9c378e8b9d67bb77c17dc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/679aaca698d30c329f5ece5b87346f57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6728f91d77e2e2c2d06c71e4c5866e60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15cebb65e57004352fd2c1f462d271bf.png)
A.0 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】已知
是定义在
上的奇函数,且
;当
时,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5069e391d8db54124b9b0d66e825d19f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4cff510b81f7160ec53b7ef179f114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff133c17652425c22f0b367e002797df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b21a90c9c8a49f5a23cbf62098bf0473.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5069e391d8db54124b9b0d66e825d19f.png)
A.-1 | B.0 |
C.1 | D.2 |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐1】已知函数
,其中
为自然对数的底数,则对任意
,下列不等式一定成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c18bdd2355f01a2c1cc1b925d4cc61a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐2】函数
在实数集
上连续可导,且
在
上恒成立,则以下不等式一定成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb788ae88e457017bb81120b6a2e5ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/339b85cca0100adc23472c143f9a5a89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/680780547e72a105fcf10c5003cf2420.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/339b85cca0100adc23472c143f9a5a89.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
【推荐1】已知a,b为正实数,且
,则
取得最小值时ab的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6f6fd5ed080738ffa6b40d8431301b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
A.![]() | B.![]() | C.![]() | D.1 |
您最近一年使用:0次
单选题
|
适中
(0.65)
名校
解题方法
【推荐2】正数
,
满足
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc5b4357fd97fc6a2328953fe45a294.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b7c26095538dfcfd897155c157e7483.png)
A.![]() | B.![]() | C.![]() | D.2 |
您最近一年使用:0次