这个题目分子有理化和分母有理化lim(x →1) (x^(1/2)-1)/(x^(1/3)-1)=lim(x →1) (x^(1/2)-1)(x^(1/2)+1)(x^(2/3)+1+x^(1/3))/[(x^(1/2)+1)(x^(1/3)-1)(x^(2/3)+1+x^(1/3))]=lim(x →1) (x-1)(x^(2/3)+1+x^(1/3))/[(...