实数a和b在数轴上所表示的点分别在原点的左右两侧,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8326d735d64701f35b0c62307ea96a64.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8326d735d64701f35b0c62307ea96a64.png)
更新时间:2023-07-28 22:11:45
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【推荐2】已知数a,b,c的大小关系如图所示,则下列各式:①
;②
;③
;④
;⑤![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39e0a24dbf26a98ebecb070cf82ed77e.png)
,其中正确的有______ (请填写编号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73c21bd0bd90a89b7ff5ac0eacf612a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b73087d86300f5cebea3e9b09781490b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/819442b2dc30159e51b9f7aa93425556.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66ba7936f46f604f080f8f42205a1344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39e0a24dbf26a98ebecb070cf82ed77e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b287c70f5ec7ceb65dcc39fd6fe4d9cd.png)
![](https://img.xkw.com/dksih/QBM/2020/4/5/2434920613232640/2434964174495744/STEM/1b7cd5ae-65e5-42ab-ba55-acb4e015e7e5.png)
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适中
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【推荐1】计算:(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b811708c1f7752522f9817ce483e1a1b.png)
_____ ,(2)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf8718397d83892736a78d6062fa46ef.png)
_____ ,(3)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/551cfc2eb5f8dd16a200747f1eeae4a3.png)
_____ ,(4)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bacc9996377dce2448fa394b4fd6f17d.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b811708c1f7752522f9817ce483e1a1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf8718397d83892736a78d6062fa46ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/551cfc2eb5f8dd16a200747f1eeae4a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bacc9996377dce2448fa394b4fd6f17d.png)
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