如果数列{an}满足a1=2,a2=1,且ana{n-1}/(a{n-1}-a{n})=a{n}a{n+1}/(a{n}
正数列a0,a1,a2.an...满足√ana(n-2)—√a(n-1)a(n-2)=2a(n-1) (n≥2) ,且a
已知数列{an}中满足a1=1,a(n+1)=2an+1 (n∈N*),证明a1/a2+a2/a3+…+an/a(n+1
已知数列{an}满足a1=1,a1+a2+a3+.+a(n-1)-an=-1(n≥2且n属于N+).
已知数列(An)中,A1=1/3,AnA(n-1)=A(n-1)-An(n>=2),数列Bn满足Bn=1/An
整数数列{An}满足 A1*A2+A2*A3+…+A(n-1)*An=(n-1)*n*(n+1)/3 ,(n=2,3,…
已知数列{an}满足a1=1,an=a1 +1/2a2 +1/3a3 … +1/(n-1)a(n-1),(n>1,n∈N
设数列{an}满足a1+3a2+3^2a3+.3^n-1×an=n/3,a∈N+.
已知数列{an}满足a1=1,an-a(n+1)=ana(n+1),数列{an}的前n项和为Sn.(1)求证:{1/an
已知数列{an}满足(a(n+1)+an-3)/(a(n+1)-an+3)=n且a2=10
数列证明题:设数列{an}满足:A(n)=a1+a2+~+an,B(n)=a2+a3+~+a(n+1),C(n)=a3+
1.a1=3 且 a(n+1)=an+5ana(n+1)
已知数列{an}满足a1=1,a2=3,a(n+2)=3a(n+1)-2an