设数列{an}满足a1=0,且a(n+1)=an+1/4+(根号(1+4an))/2 1.求a2
设数列{an}满足a1=0,且a(n+1)=an+1/4+(根号(1+4an))/2 1.求a2
已知数列{an}满足:a1=1,且an-a(n-1)=2n.求a2,a3,a4.求数列{an}通项an
设数列{an}满足a1=6,a2=4,a3=3,且数列{an+1-an}(n∈N*)是等差数列,求数列{an}的通项公式
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
设数列{an}满足a1=2,a(n+1)=an+1/an(1)求a2,a3,a4(2)比较an与根号(2n+1)的大小,
设正数数列an,a1=1,a2=2,且an=an-2除以an-1(n大于等于三)求an
关于数列极限的已知数列an满足a1=0 a2=1 an=(an-1+an-2)/2 求lim(n->无穷)an
设数列{an}满足a1=0,4an+1=4an+2根号(4an+1)+1,令bn=根号(4an+1)
已知数列{An}满足(n+1)an-nan+1=2,且a1=3.求an的通项公式,(2),求和:(a1+a2)+(a2+
在数列an中,a1=1,且满足a(n+1)=3an +2n,求an
已知数列an满足an=1+2+...n,且(1/a1)+(1/a2)+...(1/an)
设数列{an}满足a1=6,a2=4,a3=3,且数列{an+1-an}(n∈N*)是等差数列,则数列{an}的通项公式