名校
1 . 已知数列
,
的前
项和分别为
,
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abb42647bb48f0ed2087a354719204c.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cf70b7634253be512bfda01d2cceee0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cbec2b89a224681c1a3bd16f0be1fcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abb42647bb48f0ed2087a354719204c.png)
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2018-03-29更新
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662次组卷
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3卷引用:河南省新乡市2018届高三第二次模拟测试数学(文)试题