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在数列{an}中,a1=1,a2=5,an+2=an+1-an(n∈N*),则a100等于an+2=an+1-an,an+3=an+2-an+1,两式相加可得an在数列{an}中,a1=1,a2=5,

数列an,a1=4,an+1=5^n*an,求an用累乘法数列an,a1=4,an+1=5^n*an,求an用累乘法数列an,a1=4,an+1=5^n*an,求an用累乘法a(n+1)/an=5^n

An,An,An,一个白痴你是一个白痴白痴。

ananan八分之一吧,eighth是八分之一,一个八分之一就是八分之一吧

若数列an满足a1=0.5an+1=an/5an+1则an=?an+1为an的后一项若数列an满足a1=0.5an+1=an/5an+1则an=?an+1为an的后一项若数列an满足a1=0.5an+

数列an满足,a1=8且8an+1an-16an+1+2an+5=0数列an满足,a1=8且8an+1an-16an+1+2an+5=0数列an满足,a1=8且8an+1an-16an+1+2an+5

在数列{an}中,a1=1,a2=5,an+2=an+1-an(n∈N*),则a100等于(an+2=an+1-an,an+3=an+2-an+1,两式相加可得在数列{an}中,a1=1,a2=5,a

an=6n-5,怎样证明an是等差数列an=6n-5,怎样证明an是等差数列an=6n-5,怎样证明an是等差数列证明：∵an=6n-5∴a(n+1)=6(n+1)-5=6n+1∴a(n+1)-an=

数列an中,an+2=an+1-an,a1=2,a2=5,则a2009数列an中,an+2=an+1-an,a1=2,a2=5,则a2009数列an中,an+2=an+1-an,a1=2,a2=5,则

在数列an中,a1=1,a2=5,an+2=an+1-an,则a2005=在数列an中,a1=1,a2=5,an+2=an+1-an,则a2005=在数列an中,a1=1,a2=5,an+2=an+1

已知数列{an}满足a1=4,3an=5an(n下-1)+1,求an已知数列{an}满足a1=4,3an=5an(n下-1)+1,求an已知数列{an}满足a1=4,3an=5an(n下-1)+1,求

已知数列an的首项a1=3/5,an+1=3an/2an+1已知数列an的首项a1=3/5,an+1=3an/2an+1 已知数列an的首项a1=3/5,an+1=3an/2an+1分子分母

已知数列{An}中a1=3,5An=An+1+4,求An的通项公式已知数列{An}中a1=3,5An=An+1+4,求An的通项公式已知数列{An}中a1=3,5An=An+1+4,求An的通项公式由

数列an中An+1=An+1-an,a1=2,a2=5,则a5=?数列an中An+1=An+1-an,a1=2,a2=5,则a5=?数列an中An+1=An+1-an,a1=2,a2=5,则a5=?A

在数列{An}中,已知A1=1,A2=5,An+2=An+1-An,则A2008等于在数列{An}中,已知A1=1,A2=5,An+2=An+1-An,则A2008等于在数列{An}中,已知A1=1,

若数列{an}满足a1=1,a2=5且an+2=an+1-an,求a2000若数列{an}满足a1=1,a2=5且an+2=an+1-an,求a2000若数列{an}满足a1=1,a2=5且an+2=

数列a1=5an+1=an+4n-1求an通项公式数列a1=5an+1=an+4n-1求an通项公式数列a1=5an+1=an+4n-1求an通项公式a(n+1)=an+4n-1所以an=a(n-1)

a1=5,n大于等于2时,an-an-1=6n,求ana1=5,n大于等于2时,an-an-1=6n,求ana1=5,n大于等于2时,an-an-1=6n,求an当n=2时,a2-a1=12当n=3是

数列{an}满足Sn+Sn+1=5/3an+1,a1=4求an数列{an}满足Sn+Sn+1=5/3an+1,a1=4求an数列{an}满足Sn+Sn+1=5/3an+1,a1=4求anSn+S(n+

数列【an】,a1=5,an+1-an=3+4[n-1],求a50数列【an】,a1=5,an+1-an=3+4[n-1],求a50数列【an】,a1=5,an+1-an=3+4[n-1],求a50a