观察下列各式:
,
,
,…请利用你所发现的规律,计算
,其结果为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34d34f3c7ebb42e6a992cd7fc4df0d73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8881b053afa6bdc32eccfa7232414653.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87488d52fd5647ea935f9d2f52a82ac1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbc1d2702dfe7771bd25c086e333322a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
21-22八年级下·贵州遵义·阶段练习 查看更多[2]
贵州省仁怀市周林学校2021-2022学年八年级下学期第一次月考数学试题(已下线)专题05 根式中的规律性探究与证明-【微专题】2022-2023学年八年级数学下册常考点微专题提分精练(人教版)
更新时间:2022-09-06 10:05:19
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【推荐1】如图,某计算器有
、
、
三个按键,以下是三个按键的功能.①
:将荧幕显示的数变成它的算术平方根;②
:将荧幕显示的数变成它的倒数;③
:将荧幕显示的数变成它的平方,小宇输入一个数据后,按照以下不走操作,依次按照从第一步到第三步循环按键,若一开始输入的数据为10,则第2022步之后,显示的结果是( ).
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/a8eb99b1-45fb-40e1-9eab-5a131d9ded76.png?resizew=355)
![](https://img.xkw.com/dksih/QBM/2022/10/12/3086115374710784/3096565753454592/STEM/4b2e4e6ffcd2422ca0cd2d7ea77e6fae.png?resizew=43)
![](https://img.xkw.com/dksih/QBM/2022/10/12/3086115374710784/3096565753454592/STEM/e7b66512a6b7462ea6ddf5f0267f6687.png?resizew=48)
![](https://img.xkw.com/dksih/QBM/2022/10/12/3086115374710784/3096565753454592/STEM/a9fe850180164c6aa18fcccaaeb16e5f.png?resizew=48)
![](https://img.xkw.com/dksih/QBM/2022/10/12/3086115374710784/3096565753454592/STEM/f6b4e620767d4a4ba3dc7afd9ae99f16.png?resizew=49)
![](https://img.xkw.com/dksih/QBM/2022/10/12/3086115374710784/3096565753454592/STEM/c994463c345940ebbd2d09b04f36d127.png?resizew=47)
![](https://img.xkw.com/dksih/QBM/2022/10/12/3086115374710784/3096565753454592/STEM/c214959f9b244aa5a21b49ae1edd7b59.png?resizew=46)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/a8eb99b1-45fb-40e1-9eab-5a131d9ded76.png?resizew=355)
A.100 | B.1 | C.0.01 | D.10 |
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【推荐2】有如下按规律排列的数表,将这些数计算出来,并按原数表中的顺序排列得到一串数列:1,
,
,
,
,
,
,
,
,5,……
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/6/42f08c57-0693-441f-8e3c-cc455413c7de.png?resizew=453)
那么5是这串数列中的第_________个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50690dab38f4512eb72e18b7f86cf6f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4056761b8f826eeb6ad8c9a151d3c9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50690dab38f4512eb72e18b7f86cf6f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af2fdf1944afebb51cb6a5e6c74aadd.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/6/42f08c57-0693-441f-8e3c-cc455413c7de.png?resizew=453)
那么5是这串数列中的第_________个数.
A.10 | B.13 | C.10或13 | D.第5行第3个数 |
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