求极限 lim (x趋向于0) x^3/(x-sinX)

问题描述:

求极限 lim (x趋向于0) x^3/(x-sinX)

洛必塔法则
=lim(x→0)(3x^2)/(1-cosx)
=lim(x→0)(6x)/(sinx)
=6.