1 . 已知一元二次不等式
的解集为
或
,则
的解集为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdbaea722d8df27cd9df9a3817672f1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aea057db63233490e52c328c4c924e6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a2038538799ea0940114f39819618ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
A.![]() ![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2 . 已知一元二次不等式
的解集为
或
,则
的解集为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4cb72814fc154c01ff58d865e8a9b50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70fbc59fb24867343c6d7772893627df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/143e5ac53f8f695d27f8e467ed96955a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a2038538799ea0940114f39819618ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
A.![]() ![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
3 . 已知正项等比数列
满足
,
与
的等差中项为
,设
是
的前n项和,则使得
成立的n的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fa69dde104dcf963e67647e801e0149.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f65fc200f10b97588a0c9896277c9c64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55fb3dd5b3c0d098ad8cce5de1e604f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/810986ef97dc78184dc378beba2f69cb.png)
A.9 | B.10 | C.11 | D.12 |
您最近一年使用:0次
4 . 已知集合
,则集合
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc35796056310bc01040540eb2a5d3bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4b9b470218359a4a47be9244980489e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
5 . 已知集合
,
,则
=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0d91ec324ca1715af01e2688e89a025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19e45cd4044d4c53bafe4c9a470dca97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4afabfd5b4885311f8d9a4bcf791b71.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
6 . 已知全集U=R,A={x|(x+1)(x﹣2)>0},B={x|2x≤2},则(∁UA)∩B=( )
A.{x|﹣1<x<1} | B.{x|0≤x≤1} | C.{x|﹣1≤x≤1} | D.{x|x≤﹣1} |
您最近一年使用:0次
2020-06-04更新
|
213次组卷
|
2卷引用:百校联盟2020届高三5月教育教学质量监测考试(全国Ⅰ卷)文科数学试题
7 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e092d312c29f61e4bdc544593c18bbec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/699ba9134c90ec4385f20f4729574569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e60375f97ff7854f4d3a8b1108d2e3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
8 . 已知集合
,
,则
( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df9ce44e443c3947eb72ce882f629600.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a782d03c1df5567b999c975aaa4bc14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3b9f7e84867b71bdb8f0d7fd48bd582.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/516478fa887c22c7ce1a820586fbe272.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b286af6627368cc5fa5d4c6473340a0a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b98b1fdd7643c5a8d01088daf369af2.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
10 . 已知集合
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/768a627d3518b9596d18364501815f84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f5646acea762ddf5ade798f9fb46c99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca27af11b105c39a1cfa300930e8bc2.png)
A.![]() ![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次