若关于
的函数
在区间
上递减,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1fcaaff1b0e5fffe88425412364fb4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7753e58acaf2ecba5bd7b6861c2e71fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2023-10-02 12:33:38
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【知识点】 已知二次函数单调区间求参数值或范围
相似题推荐
解答题-问答题
|
较易
(0.85)
名校
【推荐1】设函数
(
为常数),对任意
,当
时,
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc59f8cfabb477e0034509df29468b3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d200a7afe1e011713e14886a6887e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a57d6d7b74ae630e6ce3b43afe6060.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
【推荐2】已知函数
(
).
(1)若函数
的图象过点
,函数
有且只有一个零点,求
表达式;
(2)在(1)的条件下,当
时,
是单调函数,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc597472ad40bcb1aecbdcc5e3f3524d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/975dce89a742fd4bcc22008dd0614455.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a22dbd882b52b60e2bffb7224997b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)在(1)的条件下,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a06386e59ea2d70abb5d5518346a5ef6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7f25b67e6aee9016909a675eb9a420.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次