(x⼀y-y⼀x)÷(x⼀y+y⼀x-2)÷(1+y⼀x)分式除法的值是多少

2024-12-25 03:07:22
推荐回答(1个)
回答1:

原式=[(x²-y²)/xy]÷[(x²-2xy+y²)/xy]÷[(x+y)/x]
=[(x+y)(x-y)/xy][xy/(x-y)²][x/(x+y)]
=x/(x-y)