已知集合
,
或
.
(1)当
时,求
;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab23887bded67cb5dc518868f03d2b31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c4e44fc1125dc258e2f871acf8c030c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/842ad3e65189c68b5eee102aa8661ba6.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df3a63eb2de8566eb7e295fc757659c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2017-11-13 22:43:43
|
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解答题-问答题
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较易
(0.85)
解题方法
【推荐1】设集合
,
,
,求m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/829c02d87776922073b49302a5bc170a.png)
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您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
名校
【推荐1】已知集合
,集合
.
(1)求
;
(2)设
,若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a48d0574a36d3e26e7911e11a5f116ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f83f852477dc28bf470cc0fd1985dab.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a475a1b56c9f1d1ae65f96d45de90952.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bceadace1203c952133a314382461dd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/124bef0597422af27c81a506a6f65197.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
|
较易
(0.85)
【推荐2】设函数
的定义域为集合
的定义域为集合
.
(1)当
时,求
;
(2)若“
”是“
”的必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74288a524fcedc71512255c426c5baaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96e799865b24cb0e00eccf7a0a5147c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94b0cbfbb7f9547c3bdcc8356d456935.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次