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MathNet 2011 Question 55

Math Olympiad Vault · MathNet 2011

Question 55

Let $a$, $b$, and $c$ be complex numbers such that $|a|=|b|=|c|=1$. If

$$

\frac{a^{2}}{b c}+\frac{b^{2}}{c a}+\frac{c^{2}}{a b}=1

$$

as well, determine the product of all possible values of $|a+b+c|$.