x^2+xy分之x-y 除以x^2y^2-x^4分之xy-x^2*x-y分之1_数学解答

x^2+xy分之x-y 除以x^2y^2-x^4分之xy-x^2*x-y分之1

人气：472 ℃　时间：2019-08-18 00:58:22

解答

(x-y)/(x^2+xy)÷(xy-x^2)/(x^2y^2-x^4)X1/(x-y)
=(x-y)/(x^2+xy)÷(xy-x^2)/(x^2+xy)(xy-x^2)X1/(x-y)
=(x-y)/(x^2+xy)÷(x^2+xy)X1/(x-y)
=1