Re: ISI INTERVIEW PREP

Posted by anon_econ on Jul 05, 2012; 7:51am
URL: http://discussion-forum.276.s1.nabble.com/ISI-INTERVIEW-PREP-tp7578819p7579097.html

or u saying it's either 1 or -1 bcoz p^2-q^2=(p-q)(p+q)?