名校
1 . 已知函数f(x)
,给出下列判断:(1)函数
的值域为
;(2)
在定义域内有三个零点;(3)
图象是中心对称图象.其中正确的判断个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e0aae52ad24c895eb31ad09e85e9600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
A.0个 | B.1个 | C.2个 | D.3个 |
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16-17高一上·上海浦东新·阶段练习
名校
2 . 集合
有
个元素,设
的所有非空子集为
,每一个
中所有元素乘积为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ece6dcdaae3dcc2f690e08a8190cd0d8.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1270c36996f27fdff81b6d81e26f78e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d88d32b64df6bd35c5081e6144a02f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bedfdfc0df673b8f8851df598a7f779f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a19d1b9e98e551f998ea32183de2d8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ece6dcdaae3dcc2f690e08a8190cd0d8.png)
您最近一年使用:0次