数列{an}、{bn}满足an•bn=1,an=n2+3n+2,则{bn}的前10项之和等于( )
数列{an}、{bn}满足an•bn=1,an=n2+3n+2,则{bn}的前10项之和等于( )
数列{an},{bn}满足anbn=1,an=n*n(n的平方)+3n+2,则{bn}的前10项之和为()
数列{an}的前n项的和Sn=n2-10n(n属于N*),数列{bn}满足bn=(an+1)/an(n属于N*),(1)
数列an,bn满足anbn=1,an=n^2+3n+2,则bn的前n项之和为
an=2*3^n-1 若数列bn满足bn=an+(-1)^n*ln(an),求数列bn前n项和Sn
数列{an} ,{bn}满足anbn = 1,an = n2 + 3n + 2,则{bn}的前十项的和为
已知数列an满足a1=1,a(n+3)=3an,数列bn的前n项和Sn=n2+2n+1 ⑴求数列an,bn的通项公式 ⑵
数列an,bn满足anbn=1,an=n²+3n+2,则bn的前十项之和是?
数列an,bn满足a1=b1=1,an+1-an=bn+1/bn=2,则数列ban的前10项和为
数列[an]的前n项和Sn等于2an-1,数列[bn]满足:b1=3,bn+1=an+bn,n属于N*.1.证明数列[a
(2)若数列{bn}满足bn=an log2 an+1,求数列{bn}的前n项和Tn
设数列{an}满足a1=1,an+1=3an,数列{bn}的前n项和Sn=n2+2n+1.