已知命题:①关于
在
上有两个零点;②关于
的不等式
的解集是
;③
在定义域内是减函数.
从以上三个命题中任选一个作为命题
,命题
:函数
的定义域为
,为了使
,
有且只有一个是真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc6c4fe0b504bcf3554ecb133cd4a2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4bc98ea4a5fd250ffa863527223051f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc7ef4b5d68ea82f495865e1b462fb2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70c6b22314b07fba2994c763b7815f48.png)
从以上三个命题中任选一个作为命题
![](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/8636316543f8f3478877e0cfd8c958a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.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)
20-21高一上·辽宁抚顺·期末 查看更多[2]
更新时间:2021-01-23 11:08:08
|
【知识点】 根据或且非的真假求参数解读
相似题推荐
解答题-问答题
|
适中
(0.65)
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【推荐1】设命题
:函数
的值域为
;命题
:不等式
对一切
均成立.
(1)若
为假命题,求实数
的取值范围;
(2)若命题
,
至少有一个是真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48fa968a7c47f7fdcdf50f6755908bda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18b83e57aaba958eca0fd8135158f8eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.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/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
【推荐2】给定两个命题:命题p:对于任意的实数x,都有
恒成立:命题q:关于x的方程
有实数根.
(1)若p为真,求实数a的取值范围;
(2)如果p、q中有且仅有一个为真命题,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d7c82de9872984d55d49b5471a813d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed96a4869723b318e458de59d80342e8.png)
(1)若p为真,求实数a的取值范围;
(2)如果p、q中有且仅有一个为真命题,求实数a的取值范围.
您最近一年使用:0次