化简(1+y/x)/(1-y/x)
问题描述:
化简(1+y/x)/(1-y/x)
答
分子分母同乘以x
=(x+y)/(x-y)
化简(1+y/x)/(1-y/x)
分子分母同乘以x
=(x+y)/(x-y)