解答题-问答题 困难0.15 引用2 组卷848
已知二次函数
的二次项系数为
,且不等式
的解集为
.(Ⅰ)若方程
有两个相等的根,求
的解析式;
(Ⅱ)若
的最大值为正数,求
的取值范围.
![](https://img.xkw.com/dksih/QBM/2012/1/6/1570679833305088/1570679838900224/STEM/5afd8ccce8df4366a0a2efd33148fe40.png)
![](https://img.xkw.com/dksih/QBM/2012/1/6/1570679833305088/1570679838900224/STEM/e35b1eb760fe47899e1317ef73ebcd1f.png)
![](https://img.xkw.com/dksih/QBM/2012/1/6/1570679833305088/1570679838900224/STEM/fd769518d35c4298aa6b758338254039.png)
![](https://img.xkw.com/dksih/QBM/2012/1/6/1570679833305088/1570679838900224/STEM/1228d6aee4ff46eeb1260660fbc06218.png)
![](https://img.xkw.com/dksih/QBM/2012/1/6/1570679833305088/1570679838900224/STEM/8f9828c5819c4cfe9feacf27b3cdcdbe.png)
![](https://img.xkw.com/dksih/QBM/2012/1/6/1570679833305088/1570679838900224/STEM/5afd8ccce8df4366a0a2efd33148fe40.png)
(Ⅱ)若
![](https://img.xkw.com/dksih/QBM/2012/1/6/1570679833305088/1570679838900224/STEM/5afd8ccce8df4366a0a2efd33148fe40.png)
![](https://img.xkw.com/dksih/QBM/2012/1/6/1570679833305088/1570679838900224/STEM/e35b1eb760fe47899e1317ef73ebcd1f.png)
10-11高一上·河北唐山·期中
类题推荐
组卷网是一个信息分享及获取的平台,不能确保所有知识产权权属清晰,如您发现相关试题侵犯您的合法权益,请联系组卷网
组卷网是一个信息分享及获取的平台,不能确保所有知识产权权属清晰,如您发现相关试题侵犯您的合法权益,请联系组卷网