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More generally, if 4 of its sides have length a, and the remaining 2 sides have length b,]]> Jan 20, 2006 2:21:09 PM Jan 20, 2006 2:21:09 PM philt@saltire.com 0 http://mathforum.org/kb/thread.jspa?messageID=4181895&tstart=0#4181895 Prove that r is a root]]> Jan 10, 2006 12:58:06 AM Jan 10, 2006 12:58:06 AM K Sengupta 1