一道有问题的数学真题,与答案有出入,请教

financelover

if X>1 and Y>1, is X<Y?
(1) X^2/(XY+X)<1  
(2) XY/Y^2-Y<1
 

DS题

我选E,答案为B,请问是否是答案错,或题目错?

chriswendy36

2)大概应该是 xy/(y^2-y),这样就能选B了。

primefangs

我就理解的是 xy/(y^2-y)。同意B

GreenHorse

xy<y^2-y

x<y-1

x<y

B

financelover

thanks !!!!!!!!