1 . 我国古代数学著作《九章算术》中有“竹九节”问题:现有一根
节的竹子,自上而下各节的容积成等比数列,最上面
节的容积之积为
,最下面
节的容积之积为
,则第
节的容积是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d02ea8c4988c5c28ab93f0d70fb55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc2cd4f61aa4295cfac20c9abbfb573a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
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2 . 意大利数学家列昂纳多·斐波那契以兔子繁殖为例,引入“兔子数列”:1,1,2,3,5,8,13,21,34,55,89,144,233,…,即
,
,此数列在现代物理、准晶体结构、化学等领域都有着广泛的应用,若此数列被3整除后的余数构成一个新数列
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a01b50173c61469416eebc346c9d112b.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b3fe135e3851c0f47aa35fab6c3df0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dbfe1cf9cba1825868a98774353181a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a01b50173c61469416eebc346c9d112b.png)
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2020-10-31更新
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326次组卷
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3卷引用:陕西省汉中市五校2020-2021学年高二上学期第一次月考数学试题