1 . 使二次根式
有意义的
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f848f06b631486527a5563b6ff9a728c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
2 . 不等式
的解集在数轴上表示为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8474cceb938c12a5a1e67b450fef994f.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-08-07更新
|
60次组卷
|
3卷引用:湖南省永州市新田县2022-2023学年八年级上学期期末数学试题
湖南省永州市新田县2022-2023学年八年级上学期期末数学试题(已下线)专题09 一元一次不等式(组)(九种考法)-【好题汇编】备战2023-2024学年八年级数学上学期期末真题分类汇编(湖南专用)黑龙江省哈尔滨市第四十七中学校2023-2024学年七年级下学期月考数学试题
3 . 解不等式
,并在数轴上表示它的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59e2658f708133305d328e669ac9eb74.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/13/18fde5c0-3210-4515-82e6-2548e7d8ea4d.png?resizew=241)
您最近一年使用:0次
4 . 已知:关于
,
的方程组
.
(1)若
,求
,
的值.
(2)若方程组的解满足
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5996a04e20cd6a95c65c78b09a9d7ca.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若方程组的解满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb9873dfaf15e799fa6fb0128433725.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
5 . (1)解二元一次方程组:
.
(2)解不等式:
,并把它的解集在如图所示的数轴上表示出来.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5ad4e39c35d04957dcd933acbb44107.png)
(2)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c4056ca4e55be54794268ac3f1bde9.png)
![](https://img.xkw.com/dksih/QBM/2023/7/9/3277129588637696/3277974198861824/STEM/bbfc3ac4c0234449944436b19aa86390.png?resizew=367)
您最近一年使用:0次
6 . 对于不等式:
(
且
),当
时,
;当
时,
,请根据以上信息,解答以下问题:
(1)解关于x的不等式:
;
(2)若关于x的不等式:
,其解集中无正整数解,求k的取值范围;
(3)若关于x的不等式:
,当
且
时,在
上总存在x的值使得其成立,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29465c6aab1bdbd994b5eadbc71105e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b21208364124b5c477b2ff8df1c2e8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a5abe56c019ac914e1fcde1865a747.png)
(1)解关于x的不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55e1df60c72386cf1f302a137b9981e6.png)
(2)若关于x的不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbf775ee2d847a539cc5a1c7669a9f4a.png)
(3)若关于x的不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b2376f9ba8df6c9c90ec2eee792b2ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902e748760713aa242c2344392568368.png)
您最近一年使用:0次
7 . 已知不等式
与不等式
的解集相同,则a的值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f68ee748ed492b68dcebdac559c5978.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6d61b2fc54b43c34d36bf8831883219.png)
您最近一年使用:0次
2023-07-10更新
|
106次组卷
|
2卷引用:湖南省长沙市立信中学2022-2023学年七年级下学期期末数学试题
8 . 解下列不等式(组):
(1)
;
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1729152c9613372682141e37b801054a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500ed28bb9650a73c89e09008d81ae8c.png)
您最近一年使用:0次
9 . 定义:对于实数
,符号
表示不大于
的最大整数.例如,
,
,
.
(1)
______.
(2)如果
,那么
的取值范围是______.
(3)如果
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0306c8a9b082d56b04c967093ddf256a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ebd026358998bd77190307abcd9893a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed90daa08b15619306e7b8341c115f88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17a30f271f7b5f08bd81cab2089bb4e4.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/853d07276a60ab14abdcbb683ff0d36c.png)
(2)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85bcfcf5250014d157e9d1d863f60621.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8189a0ed1b32d416e63d002c3795e57d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
名校
10 . 已知关于
的一元二次方程
有两个实数根.
(1)求
的取值范围;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7dc918ddef047723bb42c090beff70.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e0279dd62c61a41e900b0d1e5ae14e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2023-07-09更新
|
815次组卷
|
4卷引用:湖南省长沙市明德教育集团2022-2023学年八年级下学期期末数学试题
湖南省长沙市明德教育集团2022-2023学年八年级下学期期末数学试题(已下线)专题03 与一元二次方程有关的易错之五大题型-【好题汇编】备战2023-2024学年九年级数学上学期期末真题分类汇编(人教版)第21单元01讲福建省福州第十九中学2023-2024学年九年级上学期月考数学试题