已知点pn(an,bn)满足an+1=anb n+1,b n+1=bn/1-4an^2,且p1的坐标为(1,-1).
已知点pn(an,bn)满足an+1=anb n+1,b n+1=bn/1-4an^2,且p1的坐标为(1,-1).
已知数列an,bn,cn满足[a(n+1)-an][b(n+1)-bn]=cn
已知{an},{bn}均为等差数列,前n项的和为An,Bn,且An/Bn=2n/(3n+1),求a10/b10的值
已知正数列{an}和{bn}满足:对任意n(n属于N*),an,bn,an+1成等差数列且an+1=根号下b
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
已知数列an,bn满足a1=1,a2=3,(b(n)+1)/bn=2,bn=a(n+1)-an,(n∈正整数)
等差数列{an},{bn}的前n项和分别为An,Bn,切An/Bn=2n/3n+1,求lim(n→∞)an/bn
已知数列{an}满足a1=3,且an+1-3an=3n,(n∈N*),数列{bn}满足bn=3-nan.
关于数列和 不等式.1.若两等差数列{an}{bn}的前n项和为 An Bn ,满足(An/Bn)=(7n+1)/4n+
设n为正整数,已知点P1(a1,b1),P2(a2,b2)...,Pn(an,bn),...,都在函数y=(1/2)^x
已知数列an的n项和为Sn,且an+1=2Sn/an,a1=1 (1)求an (2)设数列bn满足(2an-1)(2bn
已知数列an的通项公式为an=2n-1,数列bn的前n项和为tn且满足tn=1- b