1 . 函数
由下表定义:
若
,
,
,2,3,…,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c2f03f58e3c85de45bd3fd86a8a66f7.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
x | 1 | 2 | 3 | 4 | 5 |
4 | 1 | 3 | 5 | 2 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cfb19f0c37a72b33083ae9319f11a74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87b351f16728b0023fd63678f8103c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c2f03f58e3c85de45bd3fd86a8a66f7.png)
您最近一年使用:0次
2022-08-08更新
|
187次组卷
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3卷引用:甘肃省庆阳第六中学2022-2023学年高二上学期第一次月考数学试题
名校
2 . 如图1是第七届国际数学教育大会的会徽,它的主题图案是由图2所示的直角三角形演化而成的,设其中的第一个直角三角形
是等腰三角形,且
,它可以形成近似的等角螺线,记
的长度组成数列
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0382b4a2ab0657d2d6830bb6be2b17b6.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c42451af24f0fd7dba027b7982ee7d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/024ae06df42a26efd7e098fb43f70ceb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d30946df532bf149b84f9d0c65b2ae4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0382b4a2ab0657d2d6830bb6be2b17b6.png)
![](https://img.xkw.com/dksih/QBM/2022/5/25/2986934648700928/2986970029629440/STEM/2491991f-fd7e-4159-9536-aa7f630df693.png?resizew=323)
您最近一年使用:0次
2022-05-25更新
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922次组卷
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4卷引用:甘肃省酒泉市玉门油田第一中学2022-2023学年高二上学期10月月考数学试题
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3 . 数列1,2,
,
,
,…中的第26项为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/619096595112f0340a43b756e114dd3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4056761b8f826eeb6ad8c9a151d3c9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50690dab38f4512eb72e18b7f86cf6f6.png)
您最近一年使用:0次
2018-02-24更新
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586次组卷
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2卷引用:甘肃省临夏中学2019-2020学年高二上学期第一次月考数学(特长班)试题