14-15高三上·四川成都·阶段练习
1 . 下图展示了一个由区间
到实数集
的映射过程:区间
中的实数
对应数上的点
,如图1;将线段
围成一个圆,使两端点
恰好重合,如图2;再将这个圆放在平面直角坐标系中,使其圆心在
轴上,点
的坐标为
,如图3.图3中直线
与
轴交于点
,则
的象就是
,记作
.
![](https://img.xkw.com/dksih/QBM/2014/9/26/1571864397897728/1571864403492864/STEM/da520efd-fd79-4e98-80ad-236604c37668.png?resizew=580)
下列说法中正确命题的序号是__________ .(填出所有正确命题的序号)
①方程
的解是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
;
②
;
③
是奇函数;
④
在定义域上单调递增;
⑤
的图象关于点
对称.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/883f23ab75b490d6e9e03b8ff8b269c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42cb8c71bc8935015b404485d8ee8b44.png)
![](https://img.xkw.com/dksih/QBM/2014/9/26/1571864397897728/1571864403492864/STEM/da520efd-fd79-4e98-80ad-236604c37668.png?resizew=580)
下列说法中正确命题的序号是
①方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845b0c10b9623a24dcd801a3ba24782.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
⑤
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76d66e9d52546beeea016d6d7d3f0ca6.png)
您最近一年使用:0次
11-12高三上·上海·期中
2 . 记不超过x的最大整数为[x],令{x}=x−[x],则函数y={x}:
①定义域为R;
②值域为[0,1];
③在定义域上是单调增函数;
④是周期为1的周期函数;
⑤是奇函数.
其中正确判断的序号是______ (把所有正确的序号都填上).
①定义域为R;
②值域为[0,1];
③在定义域上是单调增函数;
④是周期为1的周期函数;
⑤是奇函数.
其中正确判断的序号是
您最近一年使用:0次