已知数列{an}满足:a1=1,an3^（n-1）*an-1(n≥2)求证an=3^(n²-n/2)

已知数列{an}满足:a1=1,an3^（n-1）*an-1(n≥2)求证an=3^(n²-n/2) 数列的通项公式的求法1.累加法已知数列{an}满足an+1=an+2n+1,a1=1,求an2.累乘法已知数列{an}满足a1=2/3,an+1=n/（n+1）an,求an3.构造新数列已知数列{an}中,a1=1,an=2an-1+1（n≥2）,求an注：an+1或an-1中的n-+1为 五道高一数学题,在线等1.数列{an}满足:a1=2.当n≥1时,有a(n+1)=an/2+3,求{an}的通项公式an2.已知a1=1,a2=3且a(n+2)-2a(n+1)+an=a,求an3.数列{an}满足a1=1,a(n+1)=4an+(3n+1),求an4.数列{an}满足递推关系：an=a(n-2)+2,且a1= 高一数学在线急.. 已知数列｛an｝满足a1=1,a（n+1）-2an=2^n,求an1,已知数列｛an｝满足a1=1,a（n+1）-2an=2^n,求an2,已知数列｛an｝满足a（n+1）=2an-3,求an3,求数列2-1,2^2-2,2^3-3,...,2^n-n,的前n项和三道题求 1.已知数列{an}中,a1=1,an=3^(n-1)+a(n-1)(n>=2),求通项公式an2.已知数列{an}满足a1=2,an=a^2(n-1)[括号内是足标](n>=2),求通项公式an3.已知数列{an}的首项a1=5,且an=a1+a2...+a(n-1)(n>=2)求通项公式an4.设{an}是首项为 求数列通项1.已知数列{an}满足：a（n+1）方=an方+4且a1=1,an>0,求an2.在数列{an}中,a1=2,a（n+1）=an+3n+2,求an3.已知a1=1,a（n+1）-an=2的n次方-n,求an注：（n+1）是a的角标 已知数列{an}满足a1=1 an+1=an/(3an+1) 则球an 已知数列{an}满足an+1=an+n,a1等于1,则an=? 已知数列{an}满足an+1=2an+3.5^n,a1=6.求an 已知{an}是等差数列,且a1=2,a1+a2+a3=12,(1)求数列{an}的通项公式,(2)令bn=an3^n,求{bn}的前n项的和 已知数列{an}满足a(n+1)=an+n,a1=1,则an= 已知数列an满足an=1+2+...+n,且1/a1+1/a2+...+1/an 已知数列满足a1=1 ,an+1+2an=2 求an 已知数列{an}满足a1=1,an+1·an=2^n 则s2012 已知数列{an}满足An+1=2^nAn,且A1=1,则通项an 已知数列an满足条件a1=-2 an+1=2an+1则a5 已知数列{an}满足a(n+1)=an+lg2,a1=1,求an 已知数列｛an｝满足an=an+1 -lg2,且a1=1,则通项公式为?