13-14高三上·四川资阳·阶段练习
1 . 设满足条件
的点
构成的平面区域的面积为
,满足条件
的点
构成的平面区域的面积为
(其中
,
分别表示不大于x,y的最大整数,例如
,
),给出下列结论:
①点
在直线
左上方的区域内;
②点
在直线
左下方的区域内;
③
;
④
.
其中所有正确结论的序号是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dccf7fdc9ff5e9e6ed897ec3a716a35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8013e8ef36d692a5b0289ab038635cb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e882720ab8ef046c8a2202a7708bc12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37fb370b8bd5422314299f1dd4f1ec25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fe1e778c9e668594c42b77459328c63.png)
①点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97a18aa5445b7c2d72cea1d6e2589043.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
②点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97a18aa5445b7c2d72cea1d6e2589043.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cf9bf02f767a3b6a25a2af73262b116.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c360fec104715a3dde04e579cd08ee31.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ddc18ef823feb3a4bf0737f3446f99c.png)
其中所有正确结论的序号是
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