填空题-单空题 适中0.64 引用1 组卷286
等差数列与等比数列之间是存在某种结构的类比关系的,例如从定义看,或者从通项公式看,都可以发现这种类比的原则. 按照此思想,请把下面等差数列的性质,类比到等比数列,写出相应的性质:若
为等差数列,
,则公差
;若
是各项均为正数的等比数列,
,则公比![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944088064/STEM/148d1ffef37444798b6ef50a2ca44383.png?resizew=27)
_________________ .
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944088064/STEM/9f5830f190aa444fa6791c1e200f6e20.png?resizew=31)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944088064/STEM/8f581b6579e643a891c65d0f0aa72f33.png?resizew=143)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944088064/STEM/97ef5744e73a4310b35b9e3719c7b0c0.png?resizew=68)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944088064/STEM/9c448f46e8b04e778303d0d20c34c8b3.png?resizew=31)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944088064/STEM/24a8977054e5420fa3c9a3a747a35963.png?resizew=135)
![](https://img.xkw.com/dksih/QBM/2016/6/23/1572822938591232/1572822944088064/STEM/148d1ffef37444798b6ef50a2ca44383.png?resizew=27)
15-16高一下·广东·期中
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