2014·江西南昌·二模
名校
1 . 如图放置的边长为1的正方形
沿
轴滚动,点
恰好经过原点.设顶点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
的轨迹方程式
(
),则对函数
有下列判断:
①函数
是偶函数;
②对任意的
,都有
;
③函数
在区间
上单调递减;
④
.
其中判断正确的序号是 .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a351136b18bc7d3bd5122332772ab23b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
②对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94f91ba0d869011ba04651d2d4c60825.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44284ff1ea50429a0610e13363be6080.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2e9ae97abf02ea473e604f926e3bec.png)
其中判断正确的序号是 .
![](https://img.xkw.com/dksih/QBM/2017/2/8/1625057111908352/1625057112465408/STEM/44c201c807d14a1999d9305a9de4dd19.png?resizew=279)
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2017-02-16更新
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618次组卷
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4卷引用:2014届江西省南昌市高三第二次模拟考试理科数学试卷
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