已知等比数列an满足an>0,且a1an=2^(n+1),则log2a1+log2a2+log2a3+...log2a6

已知数列an是首项a1=32,公比q=1/2的等比数列,数列bn满足bn=1/n(log2a1+log2a2+…+log 在等比数列{an}中,公比q=2,log2a1+log2a2+...+log2a10=25,则a1+a2+...+a10 等比数列{an}中，q=2，log2a1+log2a2+…+log2a10=25，则a1+a2+…+a10等于（　　） 已知等比数列an的首项a1>1,公比q>0,设bn=log2a2,且b1+b3+b5=6,b1b3b5=0,又bn的前n 设等比数列{an}的前n项和为Sn,已知a1=2011,且an+2an+1+an+2=0(N∈N*),则S2012? 【急】已知数列an满足1/a1a2+1/a2a3+……1/an-1an=(n-1)/a1an,求证为等差数列 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 等比数列{an}满足:a1=1/2,且an-an-1=1/2的n次方,求an 已知等比数列{an}中有an+1-an=n×2^n且a1=1求an 已知等比数列{an}中满足an大于0,n为正整数且a5*a2n-5=2的2n次方则n大于等于1时,loga1+loga2 已知数列 an 满足a1=1,an+1=2an+n+1,若数列{an+pn+q}是等比数列,则pq的值 已知数列an满足bn=an-3n,且bn为等比数列,求an前n项和Sn