Re: dse 2012 q45 please help

Posted by MR on Jun 16, 2013; 5:28pm
URL: http://discussion-forum.276.s1.nabble.com/dse-2012-q45-please-help-tp7582382p7582395.html

U is. If you draw the sets, or even by just basic looking at them and knowledge of the definition is enough.