已知函数
满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1893ec3241bbeb7909e5a1ecfb7c1760.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc064c41e2a17fd18001bb4b7ec434cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1893ec3241bbeb7909e5a1ecfb7c1760.png)
18-19高一上·江苏南通·阶段练习 查看更多[2]
更新时间:2018-10-24 17:12:57
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适中
(0.65)
解题方法
【推荐1】设
是定义在
上的偶函数,且对于
恒有
,已知当
时,
则
(1)
的周期是2;
(2)
在
上递减,在
上递增;
(3)
的最大值是2,最小值是1;
(4)当
时,
,其中正确的命题的序号是____________________ .
![](https://img.xkw.com/dksih/QBM/2015/7/6/1572166314434560/1572166320332800/STEM/a0294e4ba03e44319fc41793b50b67c9.png?resizew=35)
![](https://img.xkw.com/dksih/QBM/2015/7/6/1572166314434560/1572166320332800/STEM/835ff0eb34774cffa7119e93ef40900f.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2015/7/6/1572166314434560/1572166320332800/STEM/041321ecbfec400896dbdc86f8a4cf91.png?resizew=51)
![](https://img.xkw.com/dksih/QBM/2015/7/6/1572166314434560/1572166320332800/STEM/a23211ef255e4d9cae498971a3f55b6b.png?resizew=120)
![](https://img.xkw.com/dksih/QBM/2015/7/6/1572166314434560/1572166320332800/STEM/40759bc57ace4cf38289f3617191902c.png?resizew=53)
![](https://img.xkw.com/dksih/QBM/2015/7/6/1572166314434560/1572166320332800/STEM/8665071b7d30413190be859551da800f.png?resizew=75)
(1)
![](https://img.xkw.com/dksih/QBM/2015/7/6/1572166314434560/1572166320332800/STEM/a0294e4ba03e44319fc41793b50b67c9.png?resizew=35)
(2)
![](https://img.xkw.com/dksih/QBM/2015/7/6/1572166314434560/1572166320332800/STEM/a0294e4ba03e44319fc41793b50b67c9.png?resizew=35)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be3ad3dd6803d92df6ff8a80cd35095.png)
(3)
![](https://img.xkw.com/dksih/QBM/2015/7/6/1572166314434560/1572166320332800/STEM/a0294e4ba03e44319fc41793b50b67c9.png?resizew=35)
(4)当
![](https://img.xkw.com/dksih/QBM/2015/7/6/1572166314434560/1572166320332800/STEM/7289e7ad32ba4510adf9d48909bb8e83.png?resizew=57)
![](https://img.xkw.com/dksih/QBM/2015/7/6/1572166314434560/1572166320332800/STEM/0de004e0697544b8bbc68ea4e646e341.png?resizew=76)
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填空题-单空题
|
适中
(0.65)
名校
【推荐2】设函数
是定义在R上的偶函数,且对任意的
恒有
,
已知当
时,
,则其中所有正确命题的序号是_____________ .
① 2是函数
的周期; ② 函数
在
上是减函数,在
上是增函数;
③ 函数
的最大值是1,最小值是0; ④ 当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19744a533b09013096d129ae0bb0b5e0.png)
已知当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1376168658dbe7f5b7f4d75fb1db545a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98807082d02b1ac92a229453af14815e.png)
① 2是函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be3ad3dd6803d92df6ff8a80cd35095.png)
③ 函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c2c8f91f560ff0c9f3aae0676fc383d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf7ae2ecca6a1f945f61558486f7083.png)
您最近一年使用:0次