下列六个实数:
(每两个1之间依次多一个2),其中无理数的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f53658c0354882e4ab2755c54288428.png)
A.2个 | B.3个 | C.4个 | D.5个 |
更新时间:2024-04-21 09:37:52
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【推荐1】根据表中的信息判断,下列语句中正确的是( )
x | 15 | 15.1 | 15.2 | 15.3 | 15.4 | 15.5 | 15.6 | 15.7 | 15.8 | 15.9 | 16 |
225 | 228.01 | 231.04 | 234.09 | 237.16 | 240.25 | 243.36 | 246.49 | 249.64 | 252.81 | 256 |
A.![]() |
B.235的算术平方根比15.3小 |
C.只有3个正整数n满足15.5![]() |
D.根据表中数据的变化趋势,可以推断出![]() |
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【推荐1】比较实数
,
,2,
的大小,其中最小的实数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae3f9d7b5354ac537c608f88e71e94b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b15e1ee2b0f7e006225ad9476adb133.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05e82cb0f1892eff54fb293e772b4142.png)
A.0 | B.![]() | C.2 | D.-1.7 |
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【推荐2】下列各数中:0、-
、
、
、
、0.3,无理数有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b1625d21fa2fb85cf8c02d8e99f175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/954795d1842974a705f9468f3b952ab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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【推荐1】在下列各数
,5,
,
,
,6.1212212221…,
中,无理数的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b5a1a7a04d4c10e7a45714482bfb58d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14c055a02fba0827ffcaa92f73ce7720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598564aec706dff769c5afc4c378c572.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94de4f4d291d88b8209e2b054a0c16b7.png)
A.1 | B.2 | C.3 | D.4 |
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【推荐2】下列各数,
,
,
,
,
,
中,无理数有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d13ce3ebd1112220c639562739f1f9d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc31441669ddf02610ce9fcbc5feb9e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fde09e20ba782ca576c51e1b93b50b85.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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