AoPSWiki
Do you have what it takes to be the next brilliant trader, researcher, or developer at Jane Street Capital? Find out in the Careers in Mathematics Forum.
Personal tools

Mock AIME 2 2006-2007/Problem 11

From AoPSWiki

Problem

Find the sum of the squares of the roots, real or complex, of the system of simultaneous equations

x+y+z=3,~x^2+y^2+z^2=3,~x^3+y^3+z^3 =3.

Solution

The roots are , , and , and we add the squares:

See also

Looking for a challenging geometry text? Preparing for MATHCOUNTS or the AMC exams? Check out Art of Problem Solving's Introduction to Geometry by Richard Rusczyk.
© Copyright 2008 AoPS Incorporated. All Rights Reserved. • FoundationPrivacyContact Us