求数学题目lim的极限

题目

求数学题目lim的极限
lim 2的N次方+3的N次方
m趋于无穷 除以（2的N+2次方+3的N+1次方） 求极限是多少

答案

lim(m→无穷)(2^n + 3^n)/(2^(n+2)+3^(n+1))
=lim(m→无穷)((2/3)^n +1)/(4(2/3)^n+3)
=lim(m→无穷)(1)/3=1/3