lim[1^n+2^n+3^n]^(1/n)等于多少n→无穷

问题描述:

lim[1^n+2^n+3^n]^(1/n)等于多少
n→无穷

A=lim[1^n+2^n+3^n]^(1/n)
A>lim[3^n]^(1/n)=lim[3]=3
A