已知abc=1,a/(ab+a+10+b/(bc+b+1)+c(ca+c+1)等于几?

已知abc=1,a/(ab+a+10+b/(bc+b+1)+c(ca+c+1)等于几?
已知abc=1,a/(ab+a+10+b/(bc+b+1)+c(ca+c+1)等于几?

已知abc=1,a/(ab+a+10+b/(bc+b+1)+c(ca+c+1)等于几?
a/(ab＋a＋1)=a/(ab＋a＋abc)=1/(b＋1＋bc),同理,b/(bc＋b＋1)不变,c/(ac＋c＋1)=(bc)/(abc＋bc＋b)=(bc)/(bc＋b＋1),则这三个的和正好等于1.