随着科技的发展,越来越多的智能产品深入人们的生活.为了测试某品牌扫地机器人的性能,开发人员设计如下实验:如图,在
表示的区域上,扫地机器人沿着三角形的边,从三角形的一个顶点等可能的移动到另外两个顶点之一,记机器人从一个顶点移动到下一个顶点称执行一次程序.若开始时,机器人从
点出发,记机器人执行
次程序后,仍回到
点的概率为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ba5711dfbd33e558e0cebf8e1158b9.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0ba5711dfbd33e558e0cebf8e1158b9.png)
更新时间:2024-05-11 16:30:57
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【知识点】 由递推关系证明等比数列
相似题推荐
填空题-单空题
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适中
(0.65)
【推荐1】已知数列
和
,设
为数列
的前
项和,满足
,且对任意
,都有
,若
,则数列
的所有项中的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d38b6286e5f74b604b9fb639c55d611f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47502da290030106eb457bdd112509df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa711a3bfafdd9d58b2dd406e129ef8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b7e7cd571c8cd141cbbfe5d0890bf6.png)
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填空题-双空题
|
适中
(0.65)
解题方法
【推荐2】已知数列
满足
,
,设
,则数列
的通项公式为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414187fca31df508dbf88d7f2bb83662.png)
_______ ,数列
的前8项和为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1549723d901eeb2cf966e322f404a5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e4f9621f0902e23a79a92ae7340e095.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b89cc96d901fc67eae6b0e8abe34eded.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414187fca31df508dbf88d7f2bb83662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
您最近一年使用:0次