(x^-2+y^-2)/(x^-2/3+y^-2/3)-(x^-2-y^-2)/(x^-2/3-y^-2/3)x^-2、y^-2、x^-2/3、y^-2/3分别为:x的-2次方、y的-2次方、x的-2/3次方、y的-2/3次方

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(x^-2+y^-2)/(x^-2/3+y^-2/3)-(x^-2-y^-2)/(x^-2/3-y^-2/3)x^-2、y^-2、x^-2/3、y^-2/3分别为:x的-2次方、y的-2次方、x的-2/3次方、y的-2/3次方

(x^-2+y^-2)/(x^-2/3+y^-2/3)-(x^-2-y^-2)/(x^-2/3-y^-2/3)x^-2、y^-2、x^-2/3、y^-2/3分别为:x的-2次方、y的-2次方、x的-2/3次方、y的-2/3次方
(x^-2+y^-2)/(x^-2/3+y^-2/3)-(x^-2-y^-2)/(x^-2/3-y^-2/3)
x^-2、y^-2、x^-2/3、y^-2/3分别为:x的-2次方、y的-2次方、x的-2/3次方、y的-2/3次方

(x^-2+y^-2)/(x^-2/3+y^-2/3)-(x^-2-y^-2)/(x^-2/3-y^-2/3)x^-2、y^-2、x^-2/3、y^-2/3分别为:x的-2次方、y的-2次方、x的-2/3次方、y的-2/3次方
其实很简单的,数学不能怕麻烦,你把分子分母同时乘以想(x*y)^5(xy的5次方)再进行运算,最后结果是2*(xy)^5*(y^3-x^3)/y^10-x^10