名校
1 . 各项都为正数的无穷等比数列
,满足
,且
是增广矩阵为
的线性方程组
的解,则无穷等比数列
各项和的数值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68514c7ec9c04b6df6cd2721aa105366.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fffffab6a4ed53bec84187a6de53745b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf02b4d59400dc50f654a324faf3e5d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fc859261585933f42c078fbc6144409.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
您最近一年使用:0次
2019-12-08更新
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181次组卷
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3卷引用:上海师范大学附属外国语中学2023届高三模拟数学试题