若a(0)=5,a(n+1)=f(an),n=0,1,2,3...,则a(2007)=

若a(0)=5,a(n+1)=f(an),n=0,1,2,3...,则a(2007)= 定义数列An=x^n+y^n+z^n,则A(n+3)-3A(n+2)+b*A(n+1)-c*An=0 已知数列{an}中,a1=1,a(n+1)>an,且[a(n+1)-an]^2-2[a(n+1)+an]+1=0,则an 大一高数证明题：若an>0,且lim(n→∞)a(n+1)/a(n)=a,则lim（an^(1/n)）=a 已知函数f(x)=logaX(a>0,且a≠1),若数列:2,f(a1),f(a2),...f(an),2n+4(n>0 证明n^n-n(n-a)^(n-1)>=n!a.其中n>=a>0 数列{An},A(1)=0,A(n+1)*2 + A(n+1) - 1 = A(n)*2, an=0,an+a(n+1)=2^n,求an通项 An>0,A1=2,当n>=2,An+A(n-1)=n/(An-A(n-1))+2,求An通项 若a>0,则lim{(3^n-a^n)/[3^(n+1)+a^(n+1)]}=? 已知函数f(x)=logaX(a>0,且a≠1),若数列:2,f(a1),f(a2),f(3)...f(an),2n+4 已知数列an中,a1=1 2a(n+1)-an=n-2/n(n+1)(n+2) 若bn=an-1/n(n+1)