已知按一定规律排列的单项式:
…,则第
(
为正整数)个单项式为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1691ddd0a7f1fa03bdf36023890b61fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a425978da20cebf8c4c63953579e7b35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a425978da20cebf8c4c63953579e7b35.png)
更新时间:2022-10-22 17:41:20
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【知识点】 单项式规律题
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【推荐1】有一列单项式,按一定的规律排列:
,
,
,
,
.根据其中的规律,则第
个单项式是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2564899e9403e844ca5fcc5aa82a61cd.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efb05bdfe36193b2c618846752aff188.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
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【推荐2】有一组单项式依次为,
,
,
,
,
……则第
个单项式是______ ;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/155dc53ae86a320c3ef6e531899795b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bfd207f5cb4f2f216bae73b2bc0bb24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81afc8d207fe403a9cb6f5bccdee5510.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf6a38c797eef652f9b7897e7abbdae.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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