已知数列{an}满足3an+1+an=0,a2=-43
已知数列{an}满足3an+1+an=0,a2=-43
已知数列{an}满足a1=1,a2=3,an+2=3an+1-2an求an
已知数列an满足a1=1.a2=3,an+2=3an+1-2an
已知数列{an}满足a1=1,a2=a(a>0),数列{bn}=an*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
已知数列an满足an=1+2+...+n,且1/a1+1/a2+...+1/an
数学题关于数列的已知数列{an}满足an+1 cosA+an sinA=11.数列{an}是公差不为0的等差数列,求A2
已知数列{an}满足(a(n+1)+an-3)/(a(n+1)-an+3)=n且a2=10
已知各项均为正数的数列{an}满足(an+1)²-an+1×an-2an²=0,且a3+2是a2,a
已知数列{an}满足a1=1,a2=-13,an+2-2an+1+an=2n-6
已知数列{an}满足a1=1,a2=-13,an+2-2an+1+an=2n-6
已知数列{an}满足a1=1,a2=2,an+2=an+an+12,n∈N*.