名校
解题方法
1 . 对于非空集合
,定义
,若
,
是两个非空集合,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1ebeaa796c02edd3cde6dd035c87176.png)
___________ ;若
,
,且存在
,
,则实数
的取值范围是_______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75e85df87ef1e2af6d065778f2574a93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1ebeaa796c02edd3cde6dd035c87176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc9f345901cf7bba2beaf07751301c04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdfde2a8158e3aa5891f4abd770439e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/535eea1bc13d1acf5e65d0cc87d2eb55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-02-15更新
|
485次组卷
|
2卷引用:江苏省南京市2022-2023学年高一上学期期末数学试题
名校
解题方法
2 . 求解下列问题
(1)已知集合
,定义
且
.求
;
(2)已知非空集合
,集合
. 命题
:
,命题
:
,若
是
的充分条件,求实数
的取值范围.
(1)已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ff76465d9f1d5bee8ae7ecb9004ce91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/999eb23bfe83dbac2fcad936332bf3f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09bb7c317f907cd7fda5ae49b24f2d41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06430886275f5ad62bcda62fce691e99.png)
(2)已知非空集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60e80c19da6871a3001d212b8aee84e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcf64245e344132923129086347bd03a.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/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次