名校
1 . 已知命题p:存在x∈R,使tan x=3,命题q:
的解集是{x|
},现有以下结论:①命题“p且q”是真命题;②命题“p且¬q”是真命题;③命题“¬p或q”是假命题;④命题“¬p或¬q”是真命题.
其中正确结论的序号为____________ .(写出所有正确结论的序号)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bec81343880dbd3be071f4c7d3ff014a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b2668e1a2b859af2eee60d412a460ea.png)
其中正确结论的序号为
您最近一年使用:0次
解题方法
2 . 下列四种说法:
①命题“
,使得
”的否定是“
,都有
”;
②设
、
是简单命题,若“
”为假命题,则“
” 为真命题;
③若
是
的充分不必要条件,则
是
的必要不充分条件;
④把函数
的图象上所有的点向右平移
个单位即可得到函数
的图象.
其中所有正确说法的序号是_________________________ .
①命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8644dcf399ddfb178c88fd2f45965c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a74b4a1af4670dbcc18b9d6af6bd9fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58264e5012ee475894984e6032968d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/774922c30b41d752ce495adc20f2dd05.png)
②设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29d4eed113aa69a7d973c6410bae7ddf.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30fd5acd3cea0866f64bc80ab4c14e3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9aacc4fa7d44974d18a3fb9e290b5c.png)
④把函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09301df9fd58ccc7343a9a6383a1ea67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c487fec20bd809e0baf5cb39afe8979.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66492e9d06b2983fb17503bfb048bc9.png)
其中所有正确说法的序号是
您最近一年使用:0次