1 . 给出下列四个命题:
①命题“
”的否定是“
”;
②在空间中,
是两条不重合的直线,
是两个不重合的平面,如果
,
,那么
;
③将函数
的图象向右平移
个单位,得到函数
的图象;
④函数
的定义域为
,且
,若方程
有两个不同实根,则
的取值范围为
.其中真命题的序号是________ .
①命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41051fd407e9953c2f7bdefcd2963a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ad7138aea9e2f732ec9c565ccb68c4a.png)
②在空间中,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0877194ab8760f54c35527177b03ff93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc14778010a33f90902ff17b1ec0ac73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e1cab5ba35f2404eca4711ede6fa7ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b6e422b2e6f6dada4d8c369559a077.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1b610e3c5b3d78a5730e7f3d736ac28.png)
③将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54e960ab40ee6533d55c4eb3303bb4c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f334828b4f1b57b3df01f5fbcd38eb8.png)
④函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93da89ca108eb5871b1ff66bb0d1bcbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c62967133141dade753f3f9938fb74b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d8fcaef916db4b90e9ce3054974759.png)
您最近一年使用:0次
2016-12-04更新
|
422次组卷
|
3卷引用:冲刺卷03-决战2020年高考数学冲刺卷(山东专版)
2 . 对于函数
,现给出四个命题:
①
时,
为奇函数;
②
的图象关于
对称;
③
时,方程
有且只有一个实数根;
④方程
至多有两个实数根
其中正确命题的序号为__________ .
![](https://img.xkw.com/dksih/QBM/2015/12/10/1572351240077312/1572351246090240/STEM/a7aa9b5b63504ac7b8612872251502ec.png?resizew=140)
①
![](https://img.xkw.com/dksih/QBM/2015/12/10/1572351240077312/1572351246090240/STEM/91b66410cdfd4499b02c23add720e466.png?resizew=39)
![](https://img.xkw.com/dksih/QBM/2015/12/10/1572351240077312/1572351246090240/STEM/246b360754924bd79dbdad57cc664d4c.png?resizew=36)
②
![](https://img.xkw.com/dksih/QBM/2015/12/10/1572351240077312/1572351246090240/STEM/9965fb61cbf644aca84c04d9925bbd86.png?resizew=61)
![](https://img.xkw.com/dksih/QBM/2015/12/10/1572351240077312/1572351246090240/STEM/a97d06b243cf49338bd65a98831c771f.png?resizew=37)
③
![](https://img.xkw.com/dksih/QBM/2015/12/10/1572351240077312/1572351246090240/STEM/2ab5ce4247b64f22bd80de2abc13e900.png?resizew=79)
![](https://img.xkw.com/dksih/QBM/2015/12/10/1572351240077312/1572351246090240/STEM/17184c2c32e1430fba7e60ba9d21a012.png?resizew=60)
④方程
![](https://img.xkw.com/dksih/QBM/2015/12/10/1572351240077312/1572351246090240/STEM/17184c2c32e1430fba7e60ba9d21a012.png?resizew=60)
其中正确命题的序号为
您最近一年使用:0次
2014·山东烟台·一模
3 . 在实数集R中,我们定义的大小关系“>”为全体实数排了一个“序”.类似的,我们在平面向量集
上也可以定义一个称“序”的关系,记为“
”.定义如下:对于任意两个向量
,“
”当且仅当“
”或“
”.按上述定义的关系“
”,给出如下四个命题:
①若
,则
;
②若
,则
;
③若
,则对于任意
;
④对于任意向量
,若
,则
.
其中真命题的序号为__________
![](https://img.xkw.com/dksih/QBM/2015/4/22/1572081100144640/1572081106124800/STEM/b821ac9dec7c462690443f2689fd0714.png?resizew=197)
![](https://img.xkw.com/dksih/QBM/2015/4/22/1572081100144640/1572081106124800/STEM/e90d06b43a9e46168ef27dd4becc9431.png?resizew=23)
![](https://img.xkw.com/dksih/QBM/2015/4/22/1572081100144640/1572081106124800/STEM/f916bc67006b4363aa0a80e96332be4b.png?resizew=141)
![](https://img.xkw.com/dksih/QBM/2015/4/22/1572081100144640/1572081106124800/STEM/bdc2d747122f4922a1647360d5785d35.png?resizew=57)
![](https://img.xkw.com/dksih/QBM/2015/4/22/1572081100144640/1572081106124800/STEM/cba9f8379e5847df96258aa61d04cbdd.png?resizew=47)
![](https://img.xkw.com/dksih/QBM/2015/4/22/1572081100144640/1572081106124800/STEM/c4c5198f1bc747c6ba30deb1173a36d9.png?resizew=103)
![](https://img.xkw.com/dksih/QBM/2015/4/22/1572081100144640/1572081106124800/STEM/e90d06b43a9e46168ef27dd4becc9431.png?resizew=23)
①若
![](https://img.xkw.com/dksih/QBM/2015/4/22/1572081100144640/1572081106124800/STEM/59e54485217243c3b1d4b71d613c91fe.png?resizew=188)
![](https://img.xkw.com/dksih/QBM/2015/4/22/1572081100144640/1572081106124800/STEM/39cf3b07dc1d4e34a12a19a65f34e4f9.png?resizew=89)
②若
![](https://img.xkw.com/dksih/QBM/2015/4/22/1572081100144640/1572081106124800/STEM/39ab310b2c144548bf6c3511de96ae5a.png?resizew=117)
![](https://img.xkw.com/dksih/QBM/2015/4/22/1572081100144640/1572081106124800/STEM/8ed74189b2bb416c8a5b4ae6180c2848.png?resizew=57)
③若
![](https://img.xkw.com/dksih/QBM/2015/4/22/1572081100144640/1572081106124800/STEM/bdc2d747122f4922a1647360d5785d35.png?resizew=57)
![](https://img.xkw.com/dksih/QBM/2015/4/22/1572081100144640/1572081106124800/STEM/2f62aaa944cb454b962fa7a807198802.png?resizew=143)
④对于任意向量
![](https://img.xkw.com/dksih/QBM/2015/4/22/1572081100144640/1572081106124800/STEM/9f57304acdcb4cbda68bfbbaedfa424d.png?resizew=108)
![](https://img.xkw.com/dksih/QBM/2015/4/22/1572081100144640/1572081106124800/STEM/bdc2d747122f4922a1647360d5785d35.png?resizew=57)
![](https://img.xkw.com/dksih/QBM/2015/4/22/1572081100144640/1572081106124800/STEM/9bde109d5d82430d9e198047d0581151.png?resizew=80)
其中真命题的序号为
您最近一年使用:0次
2016-12-03更新
|
915次组卷
|
3卷引用:2014届山东省烟台市高三统一质量检测考试理科数学试卷
2011·山东枣庄·一模
名校
4 . 已知命题“
”为假命题,则实数
的取值范围是_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d777658d6aa3891c65cb9c8c35a5f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2016-11-30更新
|
2352次组卷
|
21卷引用:2011届年山东省枣庄市高三4模拟考试理数
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