K karnbmx Member Joined Dec 12, 2011 Messages 76 Gender Male HSC 2012 Aug 18, 2012 #1 I have no idea how to attempt part ii) of this question. Anybody care to give me a hint/tip?
math man Member Joined Sep 19, 2009 Messages 503 Location Sydney Gender Male HSC N/A Aug 18, 2012 #2 The 3 roots of x^3 -1 are 1, w and w^2 so the common root must be One of those