lim n趋于无穷时:[ln(n+2)/(n+2)]*[(n+1)/(ln(n+1)]?

问题描述:

lim n趋于无穷时:[ln(n+2)/(n+2)]*[(n+1)/(ln(n+1)]?

=lim (n趋于无穷)[ln(n+2)]/[(ln(n+1)]=lim (n趋于无穷)(n+1)/(n+2)=1