解题方法
1 . 已知命题
:对于任意
,不等式
恒成立,命题
:实数
满足
.
(1)若命题
为真命题,求实数
的取值范围;
(2)若命题“
”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/9322dd8f56b5f8d2c667fdf0d4a9f9aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c9a11b5ed4416fa40c30a760c9aaefd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77b88fd68d6d0d7439b06730f0a846c7.png)
(1)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)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)
您最近一年使用:0次
2024-02-20更新
|
58次组卷
|
2卷引用:四川省雅安市天立学校2022-2023学年高二下学期期中教学质量测试数学(文)试题
2 . 已知命题
在R上恒成立;命题q:函数
,若对任意
,
恒成立;
(1)如果命题p为真命题,求实数a的取值范围;
(2)命题“
”为真命题,“
”为假命题,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36023016a95902aa6b922f2277e642a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37933f9f0b4f14c1e0e43524341666d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/684bcf84f0a266515bfafde0da903050.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c570818f555d0cca469a331d9d201cb9.png)
(1)如果命题p为真命题,求实数a的取值范围;
(2)命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
您最近一年使用:0次
名校
3 . 已知命题
曲线
1与
轴没有交点;命题
函数
是减函数.若
或
为真命题,
且
为假命题,则实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/558b399478ca2767d994e186fcbeae31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95db33d1fd76b32d2e35d1839181aa71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e434d52b7741e42c21c2785eb07ffcaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89bdf1717c68cfc8a306ee79757e7e21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e434d52b7741e42c21c2785eb07ffcaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89bdf1717c68cfc8a306ee79757e7e21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab4717e4827480f0f6f4ded85e52eab.png)
您最近一年使用:0次
名校
4 . 已知命题p: 曲线y=
1与x轴没有交点;命题q:函数f(x)=
是减函数.若p或q为真命题,p且q为假命题,则实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebde7e4a3b45ade4895a30bfd12fbf0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae464ffbc7993b240f05f4a5f735923f.png)
您最近一年使用:0次
5 . 已知
.
(1)若
是
充分不必要条件,求实数
的取值范围;
(2)若“
”是“
”的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/317c9340f6c02eed77e5f6a9455a3e3d.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/575feaa04c7836a3743306b6378f9cd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30cc102a3d288a1e0158e537b1ce5ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2016-12-03更新
|
2185次组卷
|
2卷引用:2014-2015学年四川省雅安中学高二4月月考文科数学试卷