实数a,b在数轴上的位置如图,则化简
的结果为( )
![](https://img.xkw.com/dksih/QBM/2022/8/11/3042015925542912/3073991054819328/STEM/fc5e0f0a842747f9acdd2fc835ebb8d8.png?resizew=165)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38d2cde0f4bacabdbb13a648130bd0a.png)
![](https://img.xkw.com/dksih/QBM/2022/8/11/3042015925542912/3073991054819328/STEM/fc5e0f0a842747f9acdd2fc835ebb8d8.png?resizew=165)
A.-2b-a | B.2b-a | C.-b | D.-a |
更新时间:2022-09-25 11:53:43
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【推荐1】在数轴上有四个互不相等的有理数
,
,
,
,若
,且
在
,
之间,则化简
的结果是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22ef95a57b1cf74372ab32041234c69c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b87ebf7b0f3f8acb5e5b2da1255a9b60.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐2】下列各数:
,
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b700fa9aeb1016aa71f76e4b6bb212e.png)
,
,其中非正整数有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6357ab36bfa6a6d4ee7a94bf0dbdb38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/247c16ea7ddbc26c5dfc2cc6f044e5cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b700fa9aeb1016aa71f76e4b6bb212e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a2008b78a906cf5ecdfd68432fa9ad1.png)
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A.1个 | B.2个 | C.3个 | D.4个 |
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【推荐1】以下关于
的说法,错误的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd4cee6655a37fc8243928b5dbb09fd4.png)
A.![]() | B.![]() ![]() |
C.2<![]() | D.能够在数轴上找到表示![]() |
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【推荐2】如图,
、
、
所组成的图形叫做勒洛三角形
.它是以等边三角形
的每个顶点为圆心,以其边长为半径,在另外两个顶点间做一段弧,由三段弧所围成的曲边三角形.若
,顶点A与数轴上表示
的点重合,将勒洛三角形
向右沿数轴滚动一周,则点
对应的数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16d65cecaf8a3dc2953f4109c75a981e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/667349d99185bb045030b733352ff7fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed41d321f4c0717ac5b443aad942d9a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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【推荐1】若(a+1)2+|b﹣2|=0,化简 a(x2y+xy2)﹣b(x2y﹣xy2)的结果为( )
A.3x2y | B.﹣3x2y+xy2 | C.﹣3x2y+3xy2 | D.3x2y﹣xy2 |
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【推荐2】实数a,b在数轴上的位置如图所示,那么化简
的结果是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b70ae7016dc6517ef088fd37beaea1f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/8/26/326159fe-5cfa-44a8-b7aa-be31332db97b.png?resizew=302)
A.![]() | B.![]() | C.![]() | D.![]() |
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