有理数
在数轴上的位置如图所示,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f777912c2594d6763ea0a6938fd0aad5.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f777912c2594d6763ea0a6938fd0aad5.png)
![](https://img.xkw.com/dksih/QBM/2020/1/28/2386908677136384/2387572947279872/STEM/2e7eab21-f712-40d3-bb8d-2e158051c59f.png?resizew=433)
更新时间:2020-01-29 16:32:30
|
相似题推荐
填空题
|
适中
(0.65)
名校
【推荐1】实数a,b在数轴上的位置如图所示,则化简
=_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f53e61ee1da268e15e8987190ffeb400.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/29/e659405f-5a19-4d28-b4c9-977928a4ba3b.png?resizew=342)
您最近一年使用:0次
填空题
|
适中
(0.65)
【推荐1】对于有理数a,b有下列几种说法,其中正确的个数有____________ 个
①
;
②若
,则a与b互为相反数;
③若
,则a与b异号;
④若
,且a与b同号时,则
,
;
⑤若
,且a与b异号,则
;
⑥
,则
.
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/970146f8c437d6e97a9ca4d8c6c3a8a8.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd9cdea1e995c59e5d3225acad8b4d3c.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd039882414ced3cd59d7a4d5ec76f35.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ecda7bfb0a2043306bf7707a136ad0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
⑤若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/850f6874ea501c6021573701b0294dcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ecda7bfb0a2043306bf7707a136ad0.png)
⑥
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/269bc992dccb16d432e51ed2c01aa2c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ecda7bfb0a2043306bf7707a136ad0.png)
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐1】有这样一个问题:探究函数
的图象与性质,小东根据学习函数的经验,对函数
的图像性质进行了探究,下面是小东的探究过程:
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/1/feb7ef9a-b78a-4e23-9a48-32931253dc6d.png?resizew=269)
(1)化简函数解析式,当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
________ ,当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
________ ;
(2)根据(1)中的结果,画出函数
的图象如图,结合画出的函数图象,解决问题:若关于
的方程
只有一个实数根,直接写出实数
的取值范围:________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6effa3becf04f0337e98c54da42b323.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6effa3becf04f0337e98c54da42b323.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/7/1/feb7ef9a-b78a-4e23-9a48-32931253dc6d.png?resizew=269)
(1)化简函数解析式,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee18d7a40f7a7e0dc85b1bd75bf750c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b83a660527359758db64e6566466293.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/070d1ea22a92808dad7489438c239629.png)
(2)根据(1)中的结果,画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6effa3becf04f0337e98c54da42b323.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd476474e2c1deb84f80bb874f835a39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
填空题
|
适中
(0.65)
名校
【推荐2】在数轴上,若A点表示数x,点B表示数5,A、B两点之间的距离为
,则
最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d9534c21082322a26392e6f286e5d35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c1354bc3fa247c93df657b277958bc.png)
您最近一年使用:0次