Hosted by The Math Forum## Problem of the Week 1182## A Power Sum Puzzle
Suppose a, b, c, d are complex numbers such that
a + b + c + d = 1 What is a Source: Due to Michael Elgersma and Stan Wagon, extending an old chestnut involving three variables and 3, 5, 7 on the right side. © Copyright 2014 Stan Wagon. Reproduced with permission. |

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8 June 2014