化简(1+y/x)/(1-y/x)

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化简(1+y/x)/(1-y/x)化简(1+y/x)/(1-y/x)化简(1+y/x)/(1-y/x)分子分母同乘以x=(x+y)/(x-y)[(x+y)/x]/[(x-y)/x]=[(x+y)/x]

化简(1+y/x)/(1-y/x)
化简(1+y/x)/(1-y/x)

化简(1+y/x)/(1-y/x)
分子分母同乘以x
=(x+y)/(x-y)

[(x+y)/x]/[(x-y)/x]=[(x+y)/x][x/(x-y)=(x+y)/(x-y)

(x+y)/(x-y)