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Sum of 2013th Powers of Coefficients

Source: Indian RMO 2013 Region 1 Problem 2

February 1, 2014
algebraRMO

Problem Statement

Let f(x)=x3+ax2+bx+cf(x)=x^3+ax^2+bx+c and g(x)=x3+bx2+cx+ag(x)=x^3+bx^2+cx+a, where a,b,ca,b,c are integers with c0c\not=0. Suppose that the following conditions hold:
[*]f(1)=0f(1)=0, [*]the roots of g(x)=0g(x)=0 are the squares of the roots of f(x)=0f(x)=0.
Find the value of a2013+b2013+c2013a^{2013}+b^{2013}+c^{2013}.