下面几个数:
,3.14,0,
,
,
,
其中无理数的个数有( )个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bfa52f02d7839b0b15113e16b9e9c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
A.1 | B.2 | C.3 | D.4 |
更新时间:2021-08-09 17:04:44
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【推荐1】设x是16的算术平方根,y=(-2)2,则x与y的大小关系为( )
A.x=±y | B.x=y | C.x= - y | D.x不等于y |
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【推荐2】在实数
,
,
,
,
……(两个
之间依次多个
),
中,无理数有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9db9373e74ecf5d63ad98afe66aa4ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efbc9a84f16a94b0ca5db78cba26b356.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b8109e30a21073013d1648a78ac2298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4dac1460493308dca64f5db2134d4ce.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
【推荐1】下列各数:
,
,2 ,0.333333,
,1.21221222122221......(每两个1之间依次多一个 2),3.14,
中,无理数有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d9be8aee023b3fbb9e51fe9e846d810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd4cee6655a37fc8243928b5dbb09fd4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f9844c14ff7b2ec28db4ade1a7ffc8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40822dc70f1fbe57e09b4bf918c8ffa7.png)
A.2个 | B.3个 | C.4个 | D.5个 |
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【推荐2】在3.14,
,0,π,
,0.1010010001…(相邻两个1之间依次多一个0)中无理数的个数是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bfa52f02d7839b0b15113e16b9e9c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/598564aec706dff769c5afc4c378c572.png)
A.5个 | B.4个 | C.3个 | D.2个 |
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