1 . 已知函数
,设命题
“
的定义城为
”;命题
“
的值域为
”.
(Ⅰ)若命题
为真,求实数
的取值范围;
(Ⅱ)若命题
为真命题,且
为假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d14fdc2c12c54dce933f3273036cafe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(Ⅰ)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)若命题
![](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)
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2018-12-10更新
|
817次组卷
|
2卷引用:【校级联考】安徽皖东名校联盟2019届高三上学期第二次联考数学(理)试题
2 . 已知p:二次函数
在[1,+∞)上是增函数;q:指数函数
在定义域内是增函数;命题“
”为假,且“¬ p”为假,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9557e8aef15e34235a5293b37256ad69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1eb30a80602df31b9b2efbe3f7eece4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
3 . 已知命题p:若关于x的方程x2+2mx-4m-3=0无实数根,则-3<m<-1;命题q:若关于x的方程x2+tx+1=0有两个不相等的正实数根,则t<-2.
(1)写出命题p的否命题r,并判断命题r的真假;
(2)判断命题“p且q”的真假,并说明理由.
(1)写出命题p的否命题r,并判断命题r的真假;
(2)判断命题“p且q”的真假,并说明理由.
您最近一年使用:0次
2018-11-14更新
|
654次组卷
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6卷引用:四川省成都市2017-2018学年高二上学期期末调研考试数学(文)试题
名校
解题方法
4 . 已知
,命题
关于
的不等式
的解集是
,命题
函数
的定义域为
,如果
是真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/810949b76573ccd9d43af3815299d443.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/755f08f72660a91e1618c1b96f73b5cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d143c3c1a8f90a1e24ace474369e244.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/325f94e72c64984afcaf04d4b2f411b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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5 . 已知
,且
,设
:
,
;
:方程
表示双曲线.
(1)若
为真,求
的取值范围;
(2)判断
是
的什么条件,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e253b0c99440bcfe689bef0fedfbfdeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/464d0ceaa88091d8bde013dc3682a194.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af24774091eefb200a42fa17ba4a228.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9059219044592024f63637984f86be30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
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2020-12-03更新
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2卷引用:河南省豫北名校2020-2021学年高二上学期11月质量检测数学(文)试题
6 . 已知命题p:关于
的不等式
对任意的x∈[1,2]恒成立;q:函数
在R上是增函数,
成立,若
为真,
为假,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d03796ad94613a24f2634722dd9603b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42bee0b83702bbd0e451f845d8ffe589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
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7 . (1)已知命题p:
;命题q:
,若“
”为真命题,求x的取值范围.
(2)设命题p:
;命题q:
,若
是
的充分不必要条件,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26aa02bb87a24f9f433f85123c861a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/feb43521d0c4839c37806992b788d9ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce040b7adde807d7baa87ce7e456117f.png)
(2)设命题p:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e9235f46c83dcd5a1a9f34d9d34c7a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5b4b4a6c299e7576b5a960192f95a61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/680325964ca072a8d315f51753d2e5cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4690a619a829c621fb7cd1e98df13f0.png)
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2019-02-14更新
|
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5卷引用:【百强校】安徽师范大学附属中学2018-2019学年高二上学期期末考查数学(文)试题
名校
8 . 已知命题
:“
,
”,命题
:“
,
”,若命题“
”是真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87008291cdba83461d58dbc9426d777.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47dbb694e96dbd7221ac9499ddeb5d3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1485a4756c56f1126b9825d5019d544c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bc8440d57dd0500b1c429561d9661a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abb9d57cbe246df4aa7b2e12e4aed9ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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9 . (1)请将下列真值表补充完整;(空格处填上“真”或“假”)
(2)给定命题p:对任意实数x都有
成立;命题q:关于x的方程
有实根.已知命题
和命题
都是真命题,求实数a的取值范围.
p | q | ![]() | ![]() |
真 | 真 | 真 | ______ |
真 | 假 | ______ | 真 |
假 | 真 | ______ | 假 |
假 | 假 | 真 | ______ |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5abdea09520a9022a2f1e07bf12afe6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5498a3a68e3cdb7dc121330f95a9b265.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f602c916a51570813855222577ba372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17312706507512c4215edf8b6e8c16d.png)
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10 . (1)已知命题
:实数
满足
,命题
:实数
满足方程
表示的焦点在
轴上的椭圆,且
是
的充分不必要条件,求实数
的取值范围;
(2)设命题
:关于
的不等式
的解集是
;
:函数
的定义域为
.若
是真命题,
是假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/955c7952043e50e8f92bbe5bef7c5315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeea9ab56d00e8ebb01fa4fef5db2fdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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)
(2)设命题
![](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/755f08f72660a91e1618c1b96f73b5cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5470a9b61b977a616dada0ec62cbfc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63cf3b2b1b982ecf18c5f02d963c6c43.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.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
2018-07-07更新
|
539次组卷
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2卷引用:【全国市级联考】湖北省襄阳市2017-2018学年高二下学期期末考试数学(理)试题