设a,b,c是非零有理数.
(1)求
+
的值;
(2)求
+
+
的值.
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f915ea63b69f1bcddbd60c350bdcd6e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3666120bf6de0d04a7de775366ec3996.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f915ea63b69f1bcddbd60c350bdcd6e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859a1e122b8379892a04c05b7242d7c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/785a5b969814239fc4f72f066cd34181.png)
2022七年级上·浙江·专题练习 查看更多[1]
(已下线)专题03 a除以a的绝对值-【微专题】2022-2023学年七年级数学上册常考点微专题提分精练(浙教版)
更新时间:2022-12-08 12:29:37
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(0.85)
【推荐2】有理数a,b在数轴上的位置如图所示,按要求完成下列问题:
(1)在数轴上分别标出数a,b相反数的位置,并用“
”连接a,b,
,
;
(2)根据数a,b的大小,化简:
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/30/269b4873-6949-42ed-8f54-ea27218c4294.png?resizew=296)
(1)在数轴上分别标出数a,b相反数的位置,并用“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5060ad37c403f248c937c1d59af5c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6616da8f7c03dc5d8f1ed993d3cfa25.png)
(2)根据数a,b的大小,化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69db5bc8f440cf0a80c8f1d3ad13973b.png)
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