名校
1 . 在下列命题中
①函数f(x)=![](https://img.xkw.com/dksih/QBM/2017/9/12/1779404213936128/1790884842864640/STEM/b180ff2b605049439224b1b28b896b2a.png?resizew=13)
在定义域内为单调递减函数;
②已知定义在R上周期为4的函数f(x)满足f(2﹣x)=f(2+x),则f(x)一定为偶函数;
③若f(x)为奇函数,则
f(x)dx=
2f(x)dx(a>0);
④已知函数f(x)=ax3+bx2+cx+d(a≠0),则a+b+c=0是f(x)有极值的充分不必要条件;
⑤已知函数f(x)=x﹣sinx,若a+b>0,则f(a)+f(b)>0.
其中正确命题的序号为________ (写出所有正确命题的序号).
①函数f(x)=
![](https://img.xkw.com/dksih/QBM/2017/9/12/1779404213936128/1790884842864640/STEM/b180ff2b605049439224b1b28b896b2a.png?resizew=13)
![](https://img.xkw.com/dksih/QBM/2017/9/12/1779404213936128/1790884842864640/STEM/76e41186ce9a4e57a25bd90290345d42.png?resizew=13)
②已知定义在R上周期为4的函数f(x)满足f(2﹣x)=f(2+x),则f(x)一定为偶函数;
③若f(x)为奇函数,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf1afb94a2b6192ff8384ca799f395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c65e406ef0b179ee713a87ced7d5606d.png)
④已知函数f(x)=ax3+bx2+cx+d(a≠0),则a+b+c=0是f(x)有极值的充分不必要条件;
⑤已知函数f(x)=x﹣sinx,若a+b>0,则f(a)+f(b)>0.
其中正确命题的序号为
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2017-10-08更新
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374次组卷
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4卷引用:安徽省黄山市屯溪第一中学2016-2017学年高二下学期期中考试数学(理)试题1
名校
2 . 已知
,
表示两条不同的直线,
,
,
表示三个不同的平面,给出下列四个命题:
①
,
,
,则
;
②
,
,
,则
;
③
,
,
,则
;
④
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb083c827a7fffbff90916dea20570f.png)
其中正确命题的序号为
![](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/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168f2201ca24a6b8502aa5bd1763a127.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f27b488575615d9aa6e8b0ccaf9b11b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b599a30881f97baafcc29ecae081691.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb083c827a7fffbff90916dea20570f.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb083c827a7fffbff90916dea20570f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b659403b11522c876cd7803f3dd63572.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f6c9612cc103bcc6cca5a97b917e302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b19876be5911d16eb1d9cd8f9699460b.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb083c827a7fffbff90916dea20570f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28cee4d8d2c3ef579fe3aa2f579ad269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/026830b37d89ab160108a449aa20740f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc457ba23645bb1fbaa297c5e565f978.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc457ba23645bb1fbaa297c5e565f978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45c124ab4f79a863f6a15cfd1365101f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b19876be5911d16eb1d9cd8f9699460b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb083c827a7fffbff90916dea20570f.png)
其中正确命题的序号为
A.①② | B.②③ | C.③④ | D.②④ |
您最近一年使用:0次
2017-11-26更新
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1335次组卷
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5卷引用:安徽省江淮名校2017-2018学年高二期中考试试题数学(理)