已知
,
,
,且
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cad3aaeb5b444feb152378278f68863.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ba8512fc5cf554f0d8b4279b939a0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a39edd3ee2080c4f27e1f39de399523.png)
A.3 | B.![]() | C.![]() | D.![]() |
更新时间:2022-07-17 22:50:37
|
相似题推荐
单选题
|
适中
(0.65)
解题方法
【推荐1】设实数
,
满足约束条件
,则
的最小值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930eae7e3e2bcafd156a26f01388ddcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/289571460decc855bc0830d2221c6464.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
【推荐2】在二次函数
中,
成等比数列,且
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1bd0587f5d6a3b5db9e4a93e0dbc0ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc32c2bbc0a4ea29784c84bed56c07ed.png)
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
单选题
|
适中
(0.65)
解题方法
【推荐2】已知实数
,
满足不等式组
则目标函数
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaec668c21b158197307054b1df703cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1995404eb114809bc18fbdb4f1388b2.png)
A.4 | B.5 | C.6 | D.7 |
您最近一年使用:0次