极限limn→无穷 (2n^2-3n+1)/n+1 sin1/n
问题描述:
极限limn→无穷 (2n^2-3n+1)/n+1 sin1/n
答
原式=极限limn→无穷 (2n^2-3n+1)/n(n+1)
=lim(n->∞)(2-3/n+1/n^2)/(1+1/n)
=2/1
=2