1 . 对于函数
(其中
),选取
的一组值计算
和
,所得出的
正确结果一定不可能是
![](https://img.xkw.com/dksih/QBM/2016/1/19/1572444034949120/1572444040675328/STEM/50dd8c1c86564261a67b1ef5f5e12591.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bd600fd103250001a6da05d720ad73e.png)
![](https://img.xkw.com/dksih/QBM/2016/1/19/1572444034949120/1572444040675328/STEM/2366a65f2a7d4fdf8758967c983b5018.png)
![](https://img.xkw.com/dksih/QBM/2016/1/19/1572444034949120/1572444040675328/STEM/5b31cf5a127e47a687eab155f5710a9e.png)
![](https://img.xkw.com/dksih/QBM/2016/1/19/1572444034949120/1572444040675328/STEM/94791b7cb0d34fbd975a80eb8e095f65.png)
正确结果一定不可能是
A.4和6 | B.3和1 | C.2和4 | D.1和2 |
您最近一年使用:0次
2 . 对于函数
,若存在区间
,使得
,则称函数
为“可等域函数”,区间
为函数的一个“可等域区间”.给出下列四个函数:
①
;
②
;
③
;
④
.
其中存在唯一“可等域区间”的“可等域函数”的序号是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8381052ba6db8323837b1db33549be1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f591c9cc5a83b749eac9e7664c2eadb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ace0c072dc6426e620c02a26c892b57.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce7630110d5583d6f49a4c7fb2e597db.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/955efc3ec6a981f38d08d9ad0549cacf.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e93bd8ef567c91cbbc38ac78ed23f7.png)
其中存在唯一“可等域区间”的“可等域函数”的序号是
您最近一年使用:0次