函数
,设
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d58c406b37f90b91e58d81c7f1b7814.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a30ab3a300cfcc626a18a8bf23d5275.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fdcfac025396b2662eaab48aeecac3b.png)
A.![]() | B.![]() | C.2018 | D.1009 |
更新时间:2020-04-12 17:13:28
|
相似题推荐
单选题
|
较难
(0.4)
名校
解题方法
【推荐1】已知函数
的定义域为
,
为奇函数,且对
,
恒成立.则以下结论:
①
为奇函数;
②
;
③
;
④
.
其中正确的为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e81e15b871dd32b2438ef8025bcc42d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31288e025aea746a93544c52e1c45a7e.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fceb969de98e32f56f9610c213823489.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a2ceea15ce0ff15fc3dd55216039203.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35b5d15b4f53120779531d263c4f6833.png)
其中正确的为( )
A.①②④ | B.②③ | C.②③④ | D.①③④ |
您最近一年使用:0次
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【推荐2】已知定义在
上的函数
,
,其导函数分别为
,
,且
,
,且
为奇函数,则下列等式一定成立的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933093b52cca887f597cbe22a5467b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22add663bd26e87d972a10dc5fd9ada1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7f8e496e36c3b89df188fd53140f3ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb5ac431c99c019d01f6aff1648e217f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
较难
(0.4)
名校
【推荐1】对任一实数序列
,定义序列
,它的第
项为
.假定序列
的所有项都为1,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366b7d2c4916ea8913f49587388f7e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91ba069103b2b38a451c8d33edd53fa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0fcde3a21ad686b1befcaefea2b6f5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b3cac3a8afcdd15c36f610247d50439.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2bc11d05aad76672e30e17311d204d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac326f9f4ad78d0053c113f823ea6d60.png)
A.1000 | B.2000 | C.2003 | D.4006 |
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【推荐2】已知
是边长为2的正三角形,在线段
上顺次取点
,这
个点将
分成了
等份.则
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdfa42d877ba15e51c56c6f683b7f13d.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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A.![]() | B.3 | C.![]() | D.4 |
您最近一年使用:0次