limx趋向于兀sin(x-兀)/x-兀.用洛必达法则求极限
问题描述:
limx趋向于兀sin(x-兀)/x-兀.用洛必达法则求极限
答
lim(x->π) sin(x-π)/(x-π ) (0/0)
=lim(x->π) cos(x-π)
=1