设数列{Xn}、{Yn}、{Zn}满足Xn
设数列{Xn}、{Yn}、{Zn}满足Xn
已知数列{Xn}满足Xn+1=Xn^2+Xn,X1=a(a-1),数列{Yn}满足Yn=1/(Xn+1),设Pn=X/(
设数列{ Xn}满足0
设数列Xn有界,lim(yn)=0,证明lim(xn*yn)=0
数列{xn}收敛,数列{yn}发散,则数列{xn+yn}{xn-yn}{xn·yn}收敛性如何?
设{Xn}收敛,{Yn}发散,则{Xn*Yn}发散吗?
“数列Xn,Yn满足lim(n->正无穷)Xn*Yn=0,若Xn有界则Yn必为无穷小 ” 这一命题正确吗 为什么
设数列{xn}有界,有lim(yn)=0,证明:lim[(xn)×(yn)]=0
数列证明题:设数列Xn有界,数列Yn的极限是0,证明数列﹛Xn乘Yn﹜的极限是0拜托各位大神
设数列{xn}满足xn+1=xn/2+1/xn,X0>0,n=0,1,2,3,...证明数列{xn}极限存在并求出其极限
设Yn=X(n-1)+2Xn,n=1,2,...证明:当数列Yn收敛时,数列Xn也收敛.
设数列{ Xn } 满足│Xn+1-Xn│≤k│Xn-Xn-1│,n=2,3,...(0