x+y分之xy除x平方y立方分之x+y
问题描述:
x+y分之xy除x平方y立方分之x+y
答
[xy/(x+y)] /[(x+y)/(x²y³)]=(x³y²y²)/(x+y)²
答
x+y分之xy除x平方y立方分之x+y
=(x+y)分之(xy)×(x+y)分之(x²y³)
=(x+y)²分之(x³y^4)