求数列通项公式大全?数列专题1.已知数列{an}满足a1=2,an-an-1=n(n≥2,n∈N+),则an=________.,我来为大家讲解一下关于求数列通项公式大全?跟着小编一起来看一看吧!
求数列通项公式大全
数列专题
1.已知数列{an}满足a1=2,an-an-1=n(n≥2,n∈N+),则an=________.
2.已知在数列{an}中,an+1=an(n∈N+),且a1=4,则数列{an}的通项公式an=________.
3.已知数列{an}中,a1=3,且点Pn(an,an+1)(n∈N+)在直线4x-y+1=0上,则数列{an}的通项公式为________.
4.已知数列{an}满足a1=2,an+1=(n∈N+),则an=________.
5.已知数列{an}的前n项和Sn=an+,则{an}的通项公式为an=________.