An=a*An-1+b*An-2+c*An-3+d*An-4 已知了前面几项的值,能不能利用eviews把abcd求出来?怎么求?

Is that elephant or lion.A.an; a B.a; an C.an; an D.an; / 数列｛an｝为等差数列的充要条件是（ ） A an+an+1=常数 B an+1-an=常数 C an+1- an =正数 D an+1-an=负数 There is ___ h,____ O,_____ u_____ and_____ r in ____ word hour.A.a an a an the B.an an an an a C.an an a an the D.a an an an a 在数列{an}中,a1=-2 ,an+1=1+an/1-an,则a2012= ( ) A .-2 B .-1/3 C.1/2 D.3 1.已知数列｛an｝a1=-2,an+1=(1+an)/(1-an),则a2011=A.-2 B.-1/3C.-0.5D.0.5 在等差数列{an}中,sn=12,s3=1,an+an-1+an-2=3则n等于 A.12 B.24 C.18 D.36 在数列{an}中, a1=3,an+1=an+2n-1,求an=　　　　　　　　　　　　　　　（　　）A．3n B． C． D． 已知数列{an}的通项公式为an=an/(bn+c) (a、b、c∈（0,∞））,则an与an+1的大小关系为A an>an+1B an<an+1C an=an+1D 不能确定 ____orange is____orange 选什么A.An,an B.A,the C.An,the D.An,X I want( ) egg and ( )ice-cream.A:a ,an B:an,an C:an,some a,an的用法,( )There's___h,___o,___u,and___rin the word hour.A.a,an,an,a B.an,an,a,an C.an,an,an,a D.a,an,a,a An=1 A(n+1)=0.5(An+2/An) 求An的极限 ______orange is______orange.A.The,the B.An,an C.The,an D.An,× 已知数列｛an｝的通项an=na/nb+c（a,b,c均为正实数）,则an与an+1的大小关系是 It's ____orange.It's ___ yellow orangeA:a;an B:an;the C:an;a D:an;an an+1=an^2/(an^2+2an),怎么构造新数列解此题问题是a(n+1)=an^2/(an^2+2an) 数列an满足an+1=根号(an^2+1)+an,a1=a>0,求an通项公式 An=a*An-1+b*An-2+c*An-3+d*An-4 已知了前面几项的值,能不能利用eviews把abcd求出来?怎么求?