设函数
的零点为
、
、…
,
表示不超过
的最大整数,有下述四个结论:①函数
在
上单调递增;②函数
与
有相同零点;③函数
有且仅有一个零点,且
;④函数
有且仅有两个零点,且
.其中所有正确结论的编号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0678c731013f77403ba4016837184068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3282e5fde4ae53fcb1bb072a685304c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcefe4226775a51423e4447956ad2347.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96192c84bb6e4102ff4ed50fa956a576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf180e89b0bc6e16db4a73a3e7745303.png)
A.①②③ | B.②③ | C.①②④ | D.①④ |
2020高三·全国·专题练习 查看更多[2]
更新时间:2020-09-10 09:11:12
|
相似题推荐
单选题
|
较难
(0.4)
名校
【推荐1】已知
,
,
,其中e为自然对数的底数,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be66516450dc7b9a1bc81a19c172327f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1fdfc4bcc1b9c8778af4e3513616368.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d05aceacaad109017458962088b45f1c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较难
(0.4)
名校
【推荐2】已知
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d1aa556aa138a36212eeffd13d1ad3d.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较难
(0.4)
【推荐1】已知函数
,若
的图象与
轴正半轴有两个不同的交点,则实数
的取值范围为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dac1b4d3203ef0fc060161a0613457a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较难
(0.4)
名校
解题方法
【推荐2】下图是函数
的部分图象,则它的解析式可能是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/a9bf530d-82b1-4f74-8580-f71a631511f4.png?resizew=185)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/14/a9bf530d-82b1-4f74-8580-f71a631511f4.png?resizew=185)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次