文档介绍：数列评卷人得分一、选择题1.[2017·哈三中一模]在等差数列{an}中,a2+a4=36,则数列{an}的前5项之和S5的值为( )                                                    评卷人得分二、填空题2.[2017·吉大附中高三四模(文)]已知等比数列{an}的前n项和Sn=4n+a,则a= . 3.[2017·哈三中一模(文)]设等差数列{an}的前n项和为Sn,若a1+a13=4,则S13= . 评卷人得分三、解答题4.[2017·吉林长春高三二模(文)]已知数列{an}满足a1=32,an+1=3an-1(n∈N*).(1)若数列{bn}满足bn=an-12,求证:{bn}是等比数列;(2)求数列{an}.[2017·吉林长春普高高三二模]已知数列{an}满足a1=32,an+1=3an-1(n∈N+).(1)若数列{bn}满足bn=an-12,求证:{bn}是等比数列;(2)}=log3an,Tn=c1+c2+…+cn,求证:Tn>n(n-1).[2017·吉林市普高高三第三次调研(文)]已知等差数列{an}的前n项和为Sn,公差d≠0,且a3+S5=42,a1,a4,a13成等比数列.(1)求数列{an}的通项公式;(2)设数列bn=1an-1an,求数列{bn}的前n项和Tn.