已知数列an,a1=5,a(n+1)=2an/an+3求an,就是后面的式子要怎样变形啊

已知数列｛an｝中,a(n+1)=an+2^n,a1=3,求an 已知数列{an}满足条件:a1=5,an=a1+a2+...a(n-1) n大于等于2,求数列{an}的通项公式 已知数列{an},A1=1 A(n+1)=2an/an+2 求a5 已知数列{an}满足3a(n+1)=2an-4,且a1=1/5,求an 已知数列{an}中a1=3/5,an=2-(1/a(n-1)),数列{bn}=1/(an-1)求数列{bn}的通项公式 已知数列{an}中,a1=1,a2=5/3,a(n+2)=5/3a(n+1)-2/3an,求数列{an} 已知数列an满足a1=2,an=a(n-1)+2n,（n≥2）,求an 已知数列an满足:a1=1,an-a(n-1)=n n大于等于2 求an 已知数列{an}满足a1=33,a(n+1)-an=2n,则an/n的最小值 已知数列{an}满足a1=33,a（n+1）-an=2n,求an/n的最小值 已知数列{An}中a1=1.且A(n+1)=6n*2^n-An.求通项公试An 已知数列an满足a1=100,a(n+1)-an=2n,则(an)/n的最小值为 已知数列a1=2,[a(n+1)]=-2[a（n)]+3求an 已知数列{an}满足a(n+1)=an+n,a1=1,则an= 数列竞赛题已知数列{an},a1=0,a(n+1)=5an+根号下(24*an^2+1）求an 已知数列{an}满足a1=2,a(n+1)=(5an-13)/(3an-7)则数列{an}的前100项的和是 已知数列{an}满足a1=2,a(n+1)-an=a(n+1）*an,则a31=? 已知数列{a}满足a1=1/2,a（n+1）=an+1/(n^2+n),求an已知数列{a}满足a1=1/2,a（n+1）=an+1/(n^2+n),求an