关于函数
(
,
),有下列命题:
(1)函数
的值域为
;
(2)直线
与函数
的图象有唯一交点;
(3)函数
有两个零点;
(4)函数定义域为
,则对于任意
,
.
其中所有叙述正确的命题序号是.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46b4f3c613f015861311398f70ca23c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eda48853e8bdb7e266370b4e0d5a258.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229d55eeae0ce82c467bd1e5686d8ea1.png)
(1)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20f22430fae2da8a44d864ffd704888a.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48196cf98394fcbce4181c33754141dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/190a6120c3330c51d0823c8bd8991b2a.png)
(4)函数定义域为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0643e1f4f23900039b5fc27610d61144.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3057dcc7e4d6b0fa53a1b96e8b671429.png)
其中所有叙述正确的命题序号是.
更新时间:2016-12-05 00:59:43
|
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解题方法
【推荐1】对于定义在
上的函数
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,记
,若
,则称
为
的“
区间对”.已知函数
给出下列四个结论:①若
和
是
的“
区间对”,则
的取值范围是
;②若
和
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的“
区间对”,则对任意
和
也不是
的“
区间对”;③存在实数
,使得对任意
和
都是
的“
区间对”;④对任意
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区间对”;其中所有正确结论的序号是__________ .
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,集合
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解题方法
【推荐1】设
是定义在
上且周期为6的周期函数,若函数
的图象关于点
对称,函数
在区间
(其中
)上的零点的个数的最小值为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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