lim( sinnπ/n) ,当n趋向无穷时

问题描述:

lim( sinnπ/n) ,当n趋向无穷时

lim[ 1/n,n->∞] = 0,sin(nπ)是有界函数,有界函数与无穷小的乘积还是无穷小,
lim[ sin(nπ) /n,n->∞] = 0