(x^2-√x)/√x-1的极限,当x趋向于1时,

问题描述:

(x^2-√x)/√x-1的极限,当x趋向于1时,

lim(x--->1)(x^2-√x)/(√x-1)
=lim(x--->1)(2x-1/[2√x])/(1/2√x)
=(2-1/2)/(1/2)
=4-1
=3