名校
解题方法
1 . 若实数
满足
,则称x比y远离m.
(1)解不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d1f58b806a0de27d9ae9adc8a3ec87b.png)
(2)若
比
远离
,求实数x的取值范围;
(3)若
,
,试问:
与
哪一个更远离
,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e8a3ecc83be0bce799d728f0db009f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17d41b744a89e1a50c96ca75bf090830.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d1f58b806a0de27d9ae9adc8a3ec87b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347c62b44fae618a37c145b3b5d1f1db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45900deae0489e87fe448948e8091c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29ebc856291255f2d4a6c20b982a2442.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
解题方法
2 . 已知集合
,集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/463be7666cc8c7f2cb54759a03564db7.png)
(1)当
时,比较
与
的大小;
(2)若“
”是“
”的充分不必要条件,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ec4182232d284d0874151ca13c6131e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/463be7666cc8c7f2cb54759a03564db7.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b6a5b26336eff06ce06c4e44a376687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e682c8f340f79f675ad21d19536adf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8232391e02e12d982d88e5924ec4e51.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cc4c15b1d62420f42732db3b626ce3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a3a95a978c23259caf993285d987b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab4717e4827480f0f6f4ded85e52eab.png)
您最近一年使用:0次
名校
解题方法
3 . 对于四个正数
,若满足
,则称有序数对
是
的“下位序列”.
(1)对于2、3、7、11,有序数对
是
的“下位序列”吗?请简单说明理由;
(2)设
均为正数,且
是
的“下位序列”,试判断
之间的大小关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cacf2b3b2ba1b233e24e9132e8018ee1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32446125fa37e58f0c8b5fc9802c7940.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/698c4d4e50062b4a7dd70fe1b4ab4fd7.png)
(1)对于2、3、7、11,有序数对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77dc145777bf2e8823f43f5ce4fe3c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d10f4d985c59c189de056257862b26ea.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a10657fd45a7423e4367d0d7cb877e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b807b9b8da58da1b6778865efccb01b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf24137ab9f0552ac6bd40c04e6ba98.png)
您最近一年使用:0次
2022-09-27更新
|
452次组卷
|
4卷引用:重庆市南开中学高2022-2023学年高一上学期第一次月考数学试题
2021高一·江苏·专题练习
4 . 若
,比较
与
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3c473fbeaa310ffce19a579946556c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90524b8a8da58dcd8317d993f211acf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0608204abed9248d7a6bfb191e93b13b.png)
您最近一年使用:0次