下列命题:
①命题“
”的否命题为“
”;
②命题“
”的否定是“
”
③对于常数
,“
”是“方程
表示的曲线是双曲线”的充要条件;
④“
”是“
”的必要不充分条件;
⑤已知向量
不共面,则向量
可以与向量
和向量
构成空间向量的一个基底.
其中说法正确的有_____ (写出所有真命题的编号).
①命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c89213f0964911057cad42d4231c6174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed6a68df9eefc9683d6d0b83488ffafe.png)
②命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13db1a4d6a28175b8c890da735b66e12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f55c159febb30ca7ac392bae928e5db8.png)
③对于常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bdc69abbcdf98c42b649f8d8d4cd1ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2085af2326d0e13a12d3db8dbb79f51.png)
④“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2e0b349cd216cfbe4c3e19eedb06f7a.png)
⑤已知向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12043fbdfadbf715bbc7969cdf71a907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60dcb171bb7fd972aab8294d63acdb3.png)
![](https://img.xkw.com/dksih/QBM/2016/2/17/1572488309817344/1572488315551744/STEM/88009fbd8e2c41c4b08d13e3e66c6149.png?resizew=61)
![](https://img.xkw.com/dksih/QBM/2016/2/17/1572488309817344/1572488315551744/STEM/635df2f65914453b8a76ff9958ee3ce1.png?resizew=64)
其中说法正确的有
更新时间:2016-12-04 02:18:34
|
相似题推荐
填空题-单空题
|
适中
(0.65)
名校
【推荐1】有下列命题:
①在
中,若角
,则
;
②函数
为偶函数的充要条件是
;
③
是
成等比的必要不充分条件;
④若函数
在
处有极大值,则
的值为2或6;
⑤
的最小值是2.
其中正确命题的序号是____________ (注:把你认为正确的命题的序号都填上).
①在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca51be437b1a97ca92aa1159ab71102c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19dc38d888741a1b2e95fe0773a48c38.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90385c676848de67293e3ed6bc000fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143b917df0520097be222accbddf9394.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6bf0433249804ebd49e25cd8517eaf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
④若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eb21cfb3e55b9ea13eaa3ffbccfa06f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
⑤
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42dbf0f9b73d6708a59cfe3ea983fd69.png)
其中正确命题的序号是
您最近一年使用:0次
填空题-单空题
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适中
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解题方法
【推荐2】给出下列4个命题,其中正确命题的序号____________ .
①
;
②函数
有5个零点;
③函数
的图象关于点
对称.
④已知复数
满足
,且
,则
.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/505a21f5c612e15e26b7e197a5bef95c.png)
②函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4e8b699fe03965f6cc397cc1be248d5.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a534cd6808bc6ea524f452e38198e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fab8a0cc6504aa4c3a38006f5394b4c2.png)
④已知复数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/921248b1d825f9f130cb103ff23317ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04b1dfed132bb38878bcf3609eb08361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82288b9aad954b24b88286d8e1a58791.png)
您最近一年使用:0次