下列各数
,
,
,
,
,
中无理数的个数有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/175dba2a2a7bd29c2dd4fcce37a0912d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b15e1ee2b0f7e006225ad9476adb133.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9916bb44a4955627bd6286a20197141f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab46ea0cba2d06283fae3d864a2329e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a5e6c1452add80f47cbb381d94562a.png)
A.1个 | B.2个 | C.3个 | D.4个 |
更新时间:2023-04-01 20:00:19
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【推荐2】在下列实数①
,②
,③
,④
,⑤
,⑥
,⑦
(每相邻两个5之间依次多一个2)中,属于无理数的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ffd5c35bba71ea54c28622b6cf505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/619096595112f0340a43b756e114dd3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320bb6c7ad8a97014ae59991e198ccf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc54231b2fdd8baae870b9b320ee3933.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8397629ac2094389cd991491413535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bab6c1dc0deac5d379893cb4da4b4.png)
A.2个 | B.3个 | C.4个 | D.5个 |
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【推荐1】在3.14,
,
,π,
,0.1010010001…中,无理数有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598564aec706dff769c5afc4c378c572.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5b1625d21fa2fb85cf8c02d8e99f175.png)
A.1个 | B.2个 | C.3个 | D.4个 |
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【推荐2】下列说法正确的是( )
A.一个数的绝对值一定比0大 | B.一个无理数的平方一定是有理数 |
C.绝对值等于它本身的数一定是正数 | D.无理数都是无限小数 |
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