已知数列{an}的前n项和为Sn,且Sn=(n²/2)+(11n/2).数列{bn}满足2b(n+1)=b(n
数学卷附加题:已知数列{an}的前n项和为Sn,且Sn=(n²/2)+(11n/2).数列{bn}满足2b(n
已知数列{an}的前n项和为Sn,且2Sn=2-(2n-1)an(n属于N*)(1)设bn=(2n+1)Sn,求数列{b
已知数列{an}的前n项和为Sn,且Sn=2n^2+n,n∈N*,数列{bn}满足an=4log2(bn),n∈N*
数列题.已知数列{An}的前n项和为Sn,且Sn=n^2 +n,数列{bn}满足bn=1/AnA(n+1) ,Tn是数列
1.已知数列{an}的前n项和为Sn,且Sn=2an-2,数列{bn}满足b1=1,且b(n+1)=bn+2.
已知数列an的前n项和为Sn,且Sn=n(n+1)(n属于N*)求数列an的通项公式;(2)若数列bn满足:
已知数列an满足;a1=1,an+1-an=1,数列bn的前n项和为sn,且sn+bn=2
高三数列难题已知数列{an}的前n项和为Sn,且满足Sn+n=2an(n∈N*).{an}通项公式为2^n-1若bn=(
已知数列an的前n项和为sn,且满足sn=n²an-n²(n-1),a1=1/2
设数列{an}的前n项和为Sn,数列{bn}满足:bn=nan,且数列{bn}的前n项和为(n-1)Sn+2n
已知数列an的前n项和Sn=3n^2+5n 数列bn中 b1=8 b(n-1)=64bn
已知数列{an}的前n项和为Sn,且Sn=2n2+n,n∈N*,数列{bn}满足an=4log2bn+3,n∈N*.