集合
或
,
.
(1)若
,求
,
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81caffa476aa664d60043983019518c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074a2025262fb224ccab1efd1c8c992b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66d82a1a773a2770e36c14ad8c679e7e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2020-11-12 09:28:53
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相似题推荐
解答题-问答题
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【推荐1】已知集合
,集合
.
(1)当
时,求
;
(2)求能使
成立的
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab61a1d7dc6336ac10a747a86a646725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fca2526568c99b418dc8cfad1ba4b574.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825793ebd4bb376a09621f163ac990a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eceac03b1f703d7666d91f1fc952cfad.png)
(2)求能使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐2】已知
,集合
,
.
(1)当
时,求
,
;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ef4a3876f9f4795b2be9b92ceb78ae1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa1e1e9b714b8f8159390ace745842d4.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bdd94e24c0855e2f7eb9d3cbeca12c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐1】在①
,
,②
这两句话中任选一个,补充到本题中第(2)问横线处,求解下列问题.
设全集是实数集R,
,
,
(1)当
时,求
、
;
(2)已知命题p: ,且p为真命题,求实数a的取值范围.
注:如果选择多个方案分别解答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a375fae50ad1b3d14c011673110256fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5507083437b3cc90c7b2f95dbb3bcc.png)
设全集是实数集R,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74b920274b80ace3e17020d7dc86a03c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5259347011b423a3278d48a7021e708.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)已知命题p: ,且p为真命题,求实数a的取值范围.
注:如果选择多个方案分别解答,按第一个解答计分.
您最近一年使用:0次
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【推荐2】已知集合
,
.
(1)当
时,求
;
(2)若__________,求实数a的取值范围.
请从①
,②
,③
这三个条件中选一个填入(2)中横线处,并完成第(2)问的解答.(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/fdfffbd2a7bc1c5ea68b16ba4f18fb37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e187f1ad0a35028136056f40123b44.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若__________,求实数a的取值范围.
请从①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9d50619b779c1056602f46b2a95e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8dea2ec0ee982384d2009e33b78ce71.png)
您最近一年使用:0次
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【推荐1】已知集合
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23309d8a8af6a53280532855dd6a5eaf.png)
(Ⅰ)求
,
;
(Ⅱ)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2e4dbc5d2ce3af69df0d30de4fa385.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d800464f6c65e17cbf1c3f025205725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23309d8a8af6a53280532855dd6a5eaf.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31333463f002b68938ee903c9dfbe125.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07241606934d6c75cf04455979d0e1b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
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【推荐2】已知命题
:关于
的方程
有两个不相等的实数根.
(1)若
是真命题,求实数
的取值集合
;
(2)在(1)的条件下,集合
,若
,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/4488ae34edf2e27fecb4ef5bca2d5ab6.png)
(1)若
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
(2)在(1)的条件下,集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c8abe9a7d8c94ca65b581ab3d2fec76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a9afa6ca3c54f758947c5ece1a2e71b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐1】已知全集
为全体实数,集合
,集合
.
(1)求
和
;
(2)求
和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b52b4f24969673c863b5aff4fb6751ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b0b59379f4b9f23f00c30c3f5adb553.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5041bc91dc7835b2f9cb15bd950d4dd8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b109e426e848c161a79366657ca264dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76e5450f24464d07f1a767714fa639cc.png)
您最近一年使用:0次
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【推荐2】已知集合
,
,
.
(1)求
,
;
(2)求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a9e6ad1166c7625e63b80e75b2fb1d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c14e1d5165e5dbc9820431e1fc946f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/237cca9d18560455049dc658526ffff5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/709a1f33195ab62f2da488b27a219c25.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a26bea4241ba4e54afb4172561be8734.png)
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