1 . 已知函数
.
(1)已知命题
:若正实数
,则函数
的最小正周期小于
.请写出命题
的逆否命题,并判断其真假性;
(2)已知命题
:函数
满足
,命题
:
,若
与
均为真命题,求符合题意的
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c35e80e70ad5e1805e68989f610318de.png)
(1)已知命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219e526faaa7fb02d01ec55b947a9dfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9fdc1f8ed0ae44b54a9a2a3aca2db4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)已知命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9fe158b34ee9c6204b6e28b093fbed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2091dc47caec0c6734eb058375d8a294.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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2 . π为圆周率,a,b,c,d∈Q,已知命题p:若aπ+b=cπ+d,则a=c且b=d.
(1)写出⌝非p并判断真假;
(2)写出p的逆命题、否命题及逆否命题并判断真假.
(1)写出⌝非p并判断真假;
(2)写出p的逆命题、否命题及逆否命题并判断真假.
您最近一年使用:0次
名校
3 . 写出命题“若
+(y+1)2=0,则x=2且y=-1”的逆命题、否命题、逆否命题,并判断它们的真假
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9443c443a12a5f96acd2f1170957bc0.png)
您最近一年使用:0次
2016-12-04更新
|
259次组卷
|
5卷引用:江西省南昌市安义中学2019-2020学年高二上学期期末数学(理)试题
江西省南昌市安义中学2019-2020学年高二上学期期末数学(理)试题2015-2016学年陕西省西北农林科大附中高二上第二次月考理科数学卷2015-2016学年陕西省西北农林科大附中高二上第二次月考文科数学卷2015-2016学年陕西省西安市七十中高二上学期期末文科数学试卷(已下线)活页作业1 命 题-2018年数学同步优化指导(北师大版选修2-1)
10-11高三·江西吉安·阶段练习
4 . 已知条件
,(
)和条件
,求实数
的取值范围,使命题:“若p则q”为真命题,它的逆命题为假命题.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2767066df447354851c298f31ee59a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e4f83b28b10b5757d92dc0ccb23719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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11-12高二上·江西抚州·期末
5 . 写出命题“一组对边平行且相等的四边形是平行四边形”的逆命题、否命题、逆否命题,并且判断其真假.
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