设等差数列{an}的首项及公差均是正整数,前n项和为Sn,且a1>1,a4>6,S3≤12,则a2012=_____ .
12-13高三上·上海闵行·期末 查看更多[1]
(已下线)2012届上海市闵行区高三上学期期末质量抽测理科数学试卷
更新时间:2016-12-01 13:07:17
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