请求答案确认

1.         |xy|+xy<=0?

(1)|x|+xy<=0

 (2)|y|+xy<=0   

大家这道题选什么啊，确认了吗？谢谢

Question ==>  xy<=-|xy| ?

(1) ==>  xy<=-|x|<=0

==> xy<=0 we have xy=-|xy|   ==> sufficient

thus (2) is sufficient too

D