若函数
的图象在
上与
轴有两个交点,则
的取值范围为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135dbc6d53aba5056e576176e5f0cc8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2019-10-25 08:53:49
|
【知识点】 二次函数的图象分析与判断
相似题推荐
填空题-单空题
|
适中
(0.65)
解题方法
【推荐1】已知二次函数
.甲同学:
的解集为
;乙同学:
的解集为
;丙同学:y的对称轴大于零.在这三个同学的论述中,只有一个假命题,则a的范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0269de86474198a096ec7949aaf8cd03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff6d8d3a028094e677b6a48855a93d56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a57458464618fcf619375a93d3c66d69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff6d8d3a028094e677b6a48855a93d56.png)
您最近一年使用:0次
填空题-双空题
|
适中
(0.65)
名校
【推荐2】已知函数
若存在实数
,满足
,其中
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4753f4a4456d0df13843b71015bfa14.png)
___________ ;
的取值范围为_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/690b2982d823259535c49d386a99dc92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a609d6f2db6d4a386d02946101628f8e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a77c42634098327dd27ba3903c2bbcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9481f36cc35a91ff79eecc7654e0b73b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4753f4a4456d0df13843b71015bfa14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35893041a02be39c9d0c1e9b329556eb.png)
您最近一年使用:0次