解不等式(组)并把解集在数轴上表示出来
(1)解不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2189519b46f9320a8fdec56398431b76.png)
(2)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2189519b46f9320a8fdec56398431b76.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c5b63f270a22e927850b17c392ed7e.png)
更新时间:2020-06-08 13:03:00
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相似题推荐
解答题-问答题
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适中
(0.65)
【推荐1】解下列不等式(组)
(1)解不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e186a4deab4f0718375c41f75f1ac3c5.png)
(2)解不等式组
.并把它的解集在数轴上表示出来.
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e186a4deab4f0718375c41f75f1ac3c5.png)
(2)解不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a3eab4a737355053c43712e3a84de88.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/1/3cad9f72-c365-4d81-84c1-aaa30191333d.png?resizew=244)
您最近一年使用:0次
解答题-计算题
|
适中
(0.65)
【推荐1】(1)已知关于
的不等式组
,则这个不等式的解集为 .
(2)有一种电脑程序,每按一次按键,屏幕
区就会自动加上
,同时
区就会自动减去
,且均会显示化简后的结果
已知
,
两区初始显示分别是
和
,如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/23/abd62370-d94d-4f3e-8cc2-cc6aa7f67030.png?resizew=146)
如:第一次按键后,A,
两区分别显示
小红从初始状态按
次后,求A,
两区代数式的和并化简,请判断这个和能为负数吗?说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5c82d6bc45cfbdbb0a9ad2500ed17b.png)
(2)有一种电脑程序,每按一次按键,屏幕
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8cc0b4997cae4d8aec791a1d3923314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/878e89b6eca35e34c863e832a2c661db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.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/d07ae0b4264da6a8812454ffd2f20d94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf3d3564c61e5e9c39a9e2cf2de048b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/23/abd62370-d94d-4f3e-8cc2-cc6aa7f67030.png?resizew=146)
如:第一次按键后,A,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/23/a796714f-0bb9-4da7-a5de-15515be36c8d.png?resizew=250)
小红从初始状态按
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
您最近一年使用:0次