已知全集
,非空集合
.
(1)当
时,求
;
(2)命题
,命题
,若
是
的必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8b947e527e77d19e96f9ba9f41effd9.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/200f24e682c93e02a87f3f9d57dc5d40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c5aad14709bc1c2cc706ca6bc3934d4.png)
(2)命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fa3ce35f134bf2d3ede948a90653247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4392609f63fcb931c45d779be927a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2016-12-04 22:38:37
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
【推荐1】已知集合
,
,
为实数集.
(1)当
时,求
及
;
(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/e578bc754b2123c81087d5a59015eee1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d35ac01555c4900fdb3e77a355ca85c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a495c197fcbacb8c109aa0060525a371.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75c6d0847cbfb5690d6671d0faa574d2.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/36a1b09c653185842513e24ebba60bb3.png)
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【推荐2】从①;②
;③
三个条件中,任选一个补充在下面问题中,并求解.
已知集合____,集合.
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aed39f5aca78934fb383402433fe549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcc773c8ccb6bd75d52deb94e7c70861.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/111870a9ef48f1bb2797ae8f1825a8f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc11e9183ffccd297df4a1c18618bae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/218c5309e534904dc6bf768074965239.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a83975eb010167d5bb809563441f55.png)
(1)是否存在m的值,使得
是
的充要条件,若存在求出m的值;若不存在,请说明理由.
(2)若
是
的充分条件,求m的取值范围
(3)若
=
,求m的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95a83975eb010167d5bb809563441f55.png)
(1)是否存在m的值,使得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6833b91adaea892664f8c773d5922b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f692cdc81d52ab2fda33ace0c006a808.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6833b91adaea892664f8c773d5922b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f692cdc81d52ab2fda33ace0c006a808.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9682ecfd0d8b9b413e2b5b4b1e7d5f79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235a88ea3f30d1f0670a9815c73b524e.png)
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(0.65)
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【推荐2】(1)已知集合
,
.
:
,
:
,并且
是
的充分条件,求实数
的取值范围.
(2)已知
:
,
,
:
,
,若
为假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a877401d2adb75e6ce93b2e42beb4bdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc14e964a03625de307e751bc29a94e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.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/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1485a4756c56f1126b9825d5019d544c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a659a973d15fc3ea48b35f45b15ab3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f754145f648450f9e14cec4b17140a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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1】已知集合
,
.
(1)当
时,求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8227026cdd0e9695c16aa5335af2d4f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52558eaa1bde784a349a2c65cbc85ec8.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/361048fd1b1a7f3b7230404a04b7155a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2】![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85dcec73794a2e16c8ac4b80871cb4bc.png)
(1)当
时,求
;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85dcec73794a2e16c8ac4b80871cb4bc.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c3b9f8292d632874ed0f92bbd8df0a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次