名校
1 . 设一元二次方程
的两实根分别为
,则
满足( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a164c67923fa020735240b3836c7fa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b3f51410d969f9fb41a595a028a6f06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
A.![]() | B.![]() ![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
名校
2 . 已知
则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7a08897d09dd0375375c7384c9a031.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次