已知数列{a n}中,a1=8,且2a(n+1)+an=6,其前n项和为Sn,则满足不等式|Sn-2n-4|
已知数列{An}中,A1=8,且2A(n+1)+An=6,其前n项的和为Sn,则满足不等式lSn-2n-4l
已知数列{an}满足3an+1+an=4(n∈N*)且a1=9,其前n项和为Sn,则满足不等式|Sn-n-6|<1125
已知数列an中,a1=1,当n≥2时,其前n项和为Sn,满足Sn²=an(Sn-1)
已知数列an中,a1=1,当n≥2时,其前n项和为Sn,满足Sn²=an(Sn-1)
已知数列 an前n项和为Sn,a1=1,Sn=2a(n+1),求Sn
已知数列{an}满足3an+1+an=4,a1=9,前n项和为sn,则满足不等式/sn-n-6/
已知数列{a(n)}Sn是其前n项的和,且满足3an=2Sn+n(n∈N※)
已知数列an的前n项和为sn,且满足sn=n²an-n²(n-1),a1=1/2
已知数列{An},Sn是其前n项和,且满足3An=2Sn+n,n为正整数,求证数列{An+1/2}为等比数列
已知数列An中,其前n项和为Sn,A1=1,且An+1=2Sn,求An的通项公式和Sn
已知数列an中,a1=1,当n≥2时,其前n项和Sn满足Sn^2=an(Sn-1/2)
已知数列{an}中,a1=1,当n≥2时,其前n项和Sn满足Sn²=an(Sn-1/2)