初二几道分式计算1.b/(a-b)+a/(a+b)-2ab/(b^2-a^2)2.(2a+2)/(a+1)-(a^2-1)/(a^2-2a+1)3.(x^2-2x)/x^2-1/[x-1-(2x-1/x+1)
问题描述:
初二几道分式计算
1.b/(a-b)+a/(a+b)-2ab/(b^2-a^2)
2.(2a+2)/(a+1)-(a^2-1)/(a^2-2a+1)
3.(x^2-2x)/x^2-1/[x-1-(2x-1/x+1)
答