Re: dse 2011 maths

Posted by rahul on Jun 22, 2012; 5:20am
URL: http://discussion-forum.276.s1.nabble.com/dse-2011-maths-tp7578500p7578511.html

consider cases

for X,Y>0
X<Y then (-ve, +ve)
Y<X then (+ve, +ve)
if X=Y then ( 0, +ve)
think for other values of X & Y you will get entire plane
so we have all possible values in a plane so answer is entire plane