已知x/3=y/a=m/5≠0求x+y+m/x+y-m的值
问题描述:
已知x/3=y/a=m/5≠0求x+y+m/x+y-m的值
答
由已知可得x=3m/5 y=am/5代入要求的式子,可得
(3m/5+am/5+m)/(3m/5 +am/5-m)
整理可得(8+a)/(a-2)