a是不为2的有理数,我们把
称为a的“哈利数”.如:3的“哈利数”是
=﹣2,﹣2的“哈利数”是
,已知
=3,
是
的“哈利数”,
是
的“哈利数”,
是
的“哈利数”,…,依此类推,则
=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00400cc2934d702eb1d85546ad13ede1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ace9b4d1595de42c8d26ac0d7d99ffbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/844939baf65ab47c10d693ea53362458.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90707999e8fc89ae1137e5115c39f637.png)
A.3 | B.﹣2 | C.![]() | D.![]() |
21-22八年级上·湖南长沙·阶段练习 查看更多[5]
湖南省长沙市青竹湖湘一外国语学校2021-2022学年八年级上学期第一次月考数学试卷 四川省内江市威远县凤翔中学2021-2022学年七年级上学期期中数学试题新疆维吾尔自治区乌鲁木齐市第七十中学2020-2021学年七年级上学期第一次月考数学试题(已下线)专题15.1 从分数到分式(知识讲解)-2022-2023学年八年级数学上册基础知识专项讲练(人教版)(已下线)10.1 分式-2022-2023学年八年级数学下册《考点·题型·技巧》精讲与精练高分突破系列(苏科版)
更新时间:2021-11-04 14:39:05
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【推荐1】观察下面一组数:
,将这组数排成如图的形式,按照如图规律排下去,则第10行中从左边数第9个数是( )
第一行:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
第二行:2;
;4
第三行:
;6 ;
;8;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3aab28a20b5bf47040aaec03b1eb550.png)
第四行:10;
;12;
;14;
;16
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f6cff84bd8291d90fca7bfbb7ee933.png)
第一行:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acbc6a613224461ade69362d46550474.png)
第二行:2;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81fb134b2b48acc99213fff6ccfee65f.png)
第三行:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d13ce3ebd1112220c639562739f1f9d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a94acdfb41489d5694b5a64b9e99754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3aab28a20b5bf47040aaec03b1eb550.png)
第四行:10;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eed5ece335b63af168c7c36d2121947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77424dbdd740737b4ec75d62cdd08b27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91498d22fa9e1bae4ee8399259d9cfd3.png)
A.![]() | B.90 | C.![]() | D.91 |
您最近一年使用:0次
单选题
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(0.85)
【推荐2】现有一列数
,
,
,…,
,
,
,其中
,
,
,且满足任意相邻三个数的和为同一个常数,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f65c4a9053211d12bbd3f4294ae2389.png)
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A.1986 | B.-1986 | C.2020 | D.-2020 |
您最近一年使用:0次