设
,函数
,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ab4b75fa22deba7fcbcdcb31dd45b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/181d1e7ab8f7fa9db818358cb604e8ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1c3c1ed4fb65ab9505ad8078d8d0fb5.png)
A.![]() | B.![]() | C.![]() | D.前三个选项都不对 |
更新时间:2023-02-07 20:39:19
|
【知识点】 求二次函数的值域或最值