已知函数
,对任意
,有
,则实数
的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643eef2e137570abcdec93d827daa4c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34b8e48884939ab2d0fce5f3d495826.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/698cf53f76a1d637dfe2732d0a866eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2021-11-02 12:26:15
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【知识点】 根据函数的单调性求参数值解读
相似题推荐
填空题-单空题
|
适中
(0.65)
【推荐1】如果定义在R上的函数
对任意两个不等的实数
都有
,则称函数
为“
函数”给出函数:
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/257399e428e86db1f47fa09c9de87ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3ce7709a4fcc1d07b5970cf50231320.png)
.
以上函数为“
函数”的序号为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b63d899942cc35da2f46f0d0988c7a22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e150566855799fb892282259cfd1c0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/257399e428e86db1f47fa09c9de87ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3ce7709a4fcc1d07b5970cf50231320.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42b00fcd05fcad2f258237669765519.png)
以上函数为“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8b9ad2fcfff3dd546c5fdbedfe6238.png)
您最近一年使用:0次
填空题-单空题
|
适中
(0.65)
解题方法
【推荐2】若函数
在区间
上是严格减函数,则实数a的取值集合是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4caa33b5fc013df46904d18659bc7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
您最近一年使用:0次