1961 IMO Problems

Day I

Problem 1

(Hungary) Solve the system of equations:

$\begin{matrix} \quad x + y + z \!\!\! &= a \; \, \\ x^2 +y^2+z^2 \!\!\! &=b^2 \\ \qquad \qquad xy \!\!\! &= z^2 \end{matrix}$

where $a$ and $b$ are constants. Give the conditions that $a$ and $b$ must satisfy so that $x, y, z$ (the solutions of the system) are distinct positive numbers.

Solution

Problem 2

Solution

Problem 3

Solution

Day 2

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1961 IMO Problems

Contents

Day I

Problem 1

Problem 2

Problem 3

Day 2

Problem 4

Problem 5

Problem 6

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