命题
:
,使得
;命题
:
,函数
至少与
轴有一个交点.
(1)若
为真命题,求
的取值范围;
(2)若
,
有且只有一个真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ccd7af9298cd5ff19d8866fedb42ec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6392453d0f437d55ee986a5f898e8b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad5fe274cfc8da2dacfb65801f344ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b6453d0a9dcfb648349fd4c834e54e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)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/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2023-10-13 19:54:23
|
相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知函数
.
(1)若
,判断函数的奇偶性,并写出方程
的解集;
(2)若
,解不等式:
;
(3)若
,命题
,当
为真命题时,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9139c9bf68a42c935c274fdb0603795.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75cd77f611e2ddd612629875eb899e8e.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/642c63345e7e0af07eda1ea81f452df4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a77cd424e894934eb469afe02b9eaa1.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
【推荐2】已知函数
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a59acf02de17aa3eed42a5026e75a830.png)
(1)求
的解析式;
(2)从下面两个条件中选一个,求实数
的取值范围.
①若“
”为假命题;②若“
”为真命题.
(注:如果选择多个条件分别解答,按第一个解答计分)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a59acf02de17aa3eed42a5026e75a830.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)从下面两个条件中选一个,求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
①若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47dd72268f9d5895bb8978f6530b5677.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47dd72268f9d5895bb8978f6530b5677.png)
(注:如果选择多个条件分别解答,按第一个解答计分)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐3】(1)若
,
,求实数a的取值范围;
(2)若
,
,求实数x的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219eb990a4344e7434b3b9f2299f8593.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f01f307af9298019f42b0bb09c1f26ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/219eb990a4344e7434b3b9f2299f8593.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知集合
,
或
.
(1)求
,
B;
(2)若集合
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408c3726fe0b0698826dc623f269e179.png)
为假命题.求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a01f565e9f66dbf0566663833df604.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f17985beaa4f6e02bf8225575da9168b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0d22ff835013b7dd51d7cd4eda897e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8250496dff397b3e8778755a8fe5d31e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/382767c54a93bd22adce76cdd11c6d9f.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db11114923a5b3e003c76a5e3f65eba1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/408c3726fe0b0698826dc623f269e179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9939787c3bdc2ccc8532cc3c95175c.png)
您最近一年使用:0次