limx趋近于零x的sinx的次方的值
问题描述:
limx趋近于零x的sinx的次方的值
答
lim(x→0)x^sinx
=lim(x→0)e^(sinxlnx)
=lim(x→0)e^(xlnx)
=lim(x→0)e^(lnx/x^-1)
=lim(x→0)e^(-1/x/x^(-2))
=lim(x→0)e^(-x)
=1