1 . 设a,b∈(0,1)∪(1,+∞),定义运算:
,则以下四个结论:①(2τ4)τ8=8τ(4τ2);②8τ(4τ2)>(8τ4)τ2>(2τ8)τ4;③(4τ2)=(2τ4)τ4<(2τ8)τ4;④
.其中所有正确结论的序号为__ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9396f5914fa8705e619698054a3b8495.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c5da3de643d66473c920d7a04cbcce0.png)
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2 . 已知函数
是定义在R上的偶函数,对任意
都有
,当
,且
时,
,给出如下命题:
①
;
②直线
是函数
的图象的一条对称轴;
③函数
在
上为增函数;
④函数
在
上有四个零点.
其中所有正确命题的序号为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40d5295942e85ec07a3728c7ad308d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05f1a3feca6218955446108ebad0a524.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc4f495208cdf5c885355f4f6bd0479e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7da51ea2568e743b9033d68422fb688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13909e2861ce1a0a64fc9e8b37463a7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67c673b22d6733412db522a0ebed4bb4.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66b29c39bd1dbaabfde9a6ec596488e7.png)
②直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880a8218c4b9d59523d1f35460c7a2e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40d5295942e85ec07a3728c7ad308d.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40d5295942e85ec07a3728c7ad308d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8944a17591d1189dae246718f8ade55.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40d5295942e85ec07a3728c7ad308d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e91bb7011ad55f5f033433f6c19c4e7.png)
其中所有正确命题的序号为
A.①② | B.②④ | C.①②③ | D.①②④ |
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2018-12-03更新
|
625次组卷
|
3卷引用:【全国百强校】山东省济南第一中学2019届高三上学期期中考试数学(理)试题
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3 . 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
|
1335次组卷
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5卷引用:山东省泰安市新泰市第一中学北校2022-2023学年高三上学期期中考试数学试题
2011·宁夏银川·一模
4 . 下图展示了一个由区间(0,1)到实数集R的映射过程:区间
中的实数m对应数轴上的点M,如图1;将线段
围成一个圆,使两端点A、B恰好重合,如图2;再将这个圆放在平面直角坐标系中,使其圆心在y轴上,点A的坐标为
,如图3.图3中直线
与x轴交于点
,则m的象就是n,记作
.
![](https://img.xkw.com/dksih/QBM/2014/10/29/1571886835638272/1571886841307136/STEM/59457e6e5a904b0c947f64033832730f.png?resizew=554)
下列说法中正确命题的序号是________ .(填出所有正确命题的序号)
①
;②
是奇函数; ③
在定义域上单调函数;
④
的图象关于点
对称.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7160d93f92089ef36f3dab809d3114b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/883f23ab75b490d6e9e03b8ff8b269c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42cb8c71bc8935015b404485d8ee8b44.png)
![](https://img.xkw.com/dksih/QBM/2014/10/29/1571886835638272/1571886841307136/STEM/59457e6e5a904b0c947f64033832730f.png?resizew=554)
下列说法中正确命题的序号是
①
![](https://img.xkw.com/dksih/QBM/2012/8/13/1570966318833664/1570966324215808/STEM/4b7fb9af9cd04cb794611b83bb2bf307.png?resizew=65)
![](https://img.xkw.com/dksih/QBM/2012/8/13/1570966318833664/1570966324215808/STEM/6cd9d1553b354d35950037e1fef3b99a.png?resizew=39)
![](https://img.xkw.com/dksih/QBM/2012/8/13/1570966318833664/1570966324215808/STEM/6cd9d1553b354d35950037e1fef3b99a.png?resizew=39)
④
![](https://img.xkw.com/dksih/QBM/2012/8/13/1570966318833664/1570966324215808/STEM/6cd9d1553b354d35950037e1fef3b99a.png?resizew=39)
![](https://img.xkw.com/dksih/QBM/2012/8/13/1570966318833664/1570966324215808/STEM/b347451c0ec24660892255fdfab151bd.png?resizew=41)
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