2016高二·全国·课后作业
1 . 已知下列三个不等式:①
;②
;③
,以其中两个作为条件,余下一个作为结论,则可组成几个正确命题?
![](https://img.xkw.com/dksih/QBM/2016/8/29/1826277161189376/1826277161263104/STEM/f3f68ad733c140ac8bc3ffe707bb0110.png)
![](https://img.xkw.com/dksih/QBM/2016/8/29/1826277161189376/1826277161263104/STEM/9229bee46b4d4cecbd320303caeff374.png)
![](https://img.xkw.com/dksih/QBM/2016/8/29/1826277161189376/1826277161263104/STEM/6a42571943d247f8a6fecb233b06dcbb.png)
您最近一年使用:0次
解题方法
2 . 已知
,给出下列的四个命题:
命题
:若
,则
;
命题
:若
,则
.
(1)判断命题
,命题
的真假,并说明理由;
(2)判断命题
的真假.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2276817025c081897327b3b86a0a830f.png)
命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/437601a277901f79aa3d6a4b955cf72d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c363b4f7a654109449bce51495bdf3c.png)
命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d855cbed9d386542f0d5f88918ffb98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/226d1f2bb30f6f68bed75cd07c49fb78.png)
(1)判断命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
(2)判断命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dafee0abd48fb30d1bcc33eb30a8049.png)
您最近一年使用:0次
2017-10-25更新
|
500次组卷
|
3卷引用:湖北省枣阳市高级中学2018届高三年级上学期十月份月考理科数学试题
名校
3 . 已知
.
(1)若
是
的必要不充分条件,求
的取值范围;
(2)若
是
的必要不充分条件,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c018cefaca0af3f20d777b74c9a27901.png)
(1)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/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30fd5acd3cea0866f64bc80ab4c14e3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9aacc4fa7d44974d18a3fb9e290b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
4 . 已知命题
函数
在
上是减函数;命题
函数
的值域为
.
(1)若
为真命题,求实数
的取值范围;
(2)如果
为真命题,
为假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27c78c0727e8dde4e5e38e4989071cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2edd8edcb21bd41584daf9bb95a5c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/023e86eaf593d1d088802ceab2f5f3b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ed2f490aac02631c2ed9e6b76354a49.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-09-17更新
|
1648次组卷
|
3卷引用:河北省石家庄二中2018届高三8月模拟数学(理科)试题
河北省石家庄二中2018届高三8月模拟数学(理科)试题河北省石家庄二中2017-2018学年高三8月模拟数学(文科)试题(已下线)《2018-2019学年同步单元双基双测AB卷》【文科数学B】第一章第一练集合与简易逻辑
5 . 设命题
:若
,则方程
有实数根.
(Ⅰ)试写出命题
的逆否命题;
(Ⅱ)判断命题
的逆否命题的真假,并给于证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a7820dece7424117ba528a481e01580.png)
(Ⅰ)试写出命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(Ⅱ)判断命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
您最近一年使用:0次
名校
6 . 设
:实数
满足:
(
),
:实数
满足:
,
.
(1)若
,且
为真,求实数
的取值范围;
(2)
是
的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebff6619f0334a3494d94c6cacf2f2ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f6bca11a562fa672f667abd3def09ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e61ab3eae51c1f29df90157ffecb580f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51e2b8f615b2cc7eca7fda25efb507d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-06-11更新
|
1047次组卷
|
4卷引用:山东省临沂市临沭第一中学2018届高三10月学情调研测试数学试题
山东省临沂市临沭第一中学2018届高三10月学情调研测试数学试题辽宁省大连育明高级中学、本溪市高级中学2018届高三10月月考数学(理)试题(已下线)2019年一轮复习讲练测 1.2 命题及其关系、逻辑联结词、充分条件与必要条件【浙江版】【测】重庆市第一中学2016-2017学年高二下学期期中考试数学(文)试题
7 . 已知命题
:函数
在
上单调递增;命题
:关于
的方程![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7149f9d525d472fd65e3ecc8aa8b5bd9.png)
有解.若
为真命题,
为假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/169b7ecb8032954bb5b43e4a8a8608ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8db2ba383879436d627fa8ff69bbcf65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7149f9d525d472fd65e3ecc8aa8b5bd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b9b7470d7fbb35ee9295f66c605093c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2017-05-02更新
|
509次组卷
|
8卷引用:安徽省六安市寿县第一中学2018屇高三上学期第一次月考试 数学(文)试题
安徽省六安市寿县第一中学2018屇高三上学期第一次月考试 数学(文)试题安徽省太和中学2016-2017学年高二下学期期中考试数学(文)试题(已下线)2017-2018学年度下学期高中期末备考【通用版】高二【精准复习模拟题】A【基础卷01】【文科数学】(教师版)(已下线)2017-2018学年度下学期高中期末备考【通用版】高二【精准复习模拟题】C【拔高卷02】【文科数学】(教师版)(已下线)2017-2018学年度下学期高中期末备考【通用版】高二【精准复习模拟题】B【提高卷01】【文科数学】(教师版)湖北省襄阳市2018-2019学年高二下学期期末数学(理)试题(已下线)1.1 命题及其关系提高练-2021-2022学年高二数学同步训练精选新题汇编(人教A版选修2-1)湖北省襄阳市2018-2019学年高二下学期期末数学(文)试题
名校
8 . 已知命题
方程
有两个不等的负实根,命题
方程
无实根.
(1)若命题
为真,求实数
的取值范围;
(2)若命题
和命题
一真一假,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36bcb4df710cf7fc5a4159380ae5451e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c93fbc3aa276edc226a50c5fb672880.png)
(1)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若命题
![](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/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
9 . 设函数
在区间
上单调递增;
函数
在其定义域上存在极值.
(1)若
为真命题,求实数
的取值范围;
(2)如果“
或
”为真命题,“
且
”为假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cfc8ae5fc85508f87a7f5a5fbb888f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2501720149908efa11f777f9327aa754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a01120011aa12ed6a77cb960614d0956.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)如果“
![](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/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
10 . 已知函数
,给出下列两个命题:
命题
若
,则
.
命题![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
,方程
有解.
(1)判断命题
、命题
的真假,并说明理由;
(2)判断命题
、
、
、
的真假.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/276fae620a0c240b3287f5494d344635.png)
命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/972592728257d4ed956be1c5f3a097f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f3286c411a50ce6d5fae85b4f2a9c96.png)
命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db50c10388b14d4b1f66d5356d595d16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eb2e46f49adba6036e2624639a1b966.png)
(1)判断命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
(2)判断命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a037d29525d118dc083dc3e5e808ca2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a31351c3868449fd115650c13152be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0045a603e555d2d2a8ef634f9edf9951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cd024167e8c0c14d3814fb9f4a5298a.png)
您最近一年使用:0次