已知
是周期为5的周期数列,其中
是等差数列,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02cd0ae23e510728adfd9f544553af9b.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/874781ab5711bff6ee8c9cbad5b3b3dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0e7af5ea2e9a9785623509d96c5a51b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02cd0ae23e510728adfd9f544553af9b.png)
更新时间:2022-04-05 18:46:34
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