1 . 将杨辉三角中的每一个数
都换成
,得到如图所示的分数三角形,称为莱布尼茨三角形.莱布尼茨三角形具有很多优美的性质,如从第0行开始每一个数均等于其“脚下”两个数之和,如果
,那么下面关于莱布尼茨三角形的结论正确的是( )
![](https://img.xkw.com/dksih/QBM/2022/4/24/2964995126648832/2998281385246720/STEM/bf828aba82354a15b3d1d3ff50ae9a16.png?resizew=347)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb4fb20d3a3a67baa8505623e0bd9de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f2b94b78505bbc9a08ab0b4c3366fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/317e67653c0733cd4e7b7dd6cec3b8a1.png)
![](https://img.xkw.com/dksih/QBM/2022/4/24/2964995126648832/2998281385246720/STEM/bf828aba82354a15b3d1d3ff50ae9a16.png?resizew=347)
A.当![]() ![]() |
B.![]() |
C.![]() |
D.![]() |
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2 . 杨辉是中国南宋时期的杰出数学家、教育家,杨辉三角是杨辉的一项重要研究成果,它的许多性质与组合数的性质有关,其中蕴藏了许多优美的规律.设
,若
的展开式中,存在某连续三项,其二项式系数依次成等差数列.则称
具有性质
.如
的展开式中,二、三、四项的二项式系数为
,
,
,依次成等差数列,所以
具有性质
.若存在
,使
具有性质
,则
的最大值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a949bba5e898e22f2f7c2903bb7638e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fcec7af3520884b173b29bda6c657a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fcec7af3520884b173b29bda6c657a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1b4d65d7282b653d8d44c925b06c228.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b06e95b57b7a81cd81d05557a11fa92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea1834490aacbee800ed5721312f4be1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba505969331b28f0e2d3047d49988914.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d457a7eb2c2c92e7b017b986d3c193f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1398ddc83fa744014df3c51d22a43ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fcec7af3520884b173b29bda6c657a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
A.22 | B.23 | C.24 | D.25 |
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2019-05-28更新
|
371次组卷
|
2卷引用:【市级联考】山东省潍坊市2018-2019学年高二下学期模块监测(期中)数学试题