International Competitions 1987

#CompetitionYearsProblemsYears
1International Mathematical Olympiad1959–2025398
2Middle European Mathematical Olympiad2009–2025160
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ProblemSourceTags
International Mathematical Olympiad 1987 Problem 1International Mathematical Olympiad 1987CombinatoricsCountingPermutations
International Mathematical Olympiad 1987 Problem 2International Mathematical Olympiad 1987AreaCircumcircleGeometryPerpendicularityTriangle
International Mathematical Olympiad 1987 Problem 3International Mathematical Olympiad 1987InequalitiesOptimization
International Mathematical Olympiad 1987 Problem 4International Mathematical Olympiad 1987AlgebraFunctional
International Mathematical Olympiad 1987 Problem 5International Mathematical Olympiad 1987AreaConstructionCoordGeometryRational
International Mathematical Olympiad 1987 Problem 6International Mathematical Olympiad 1987NTPolynomialsPrimes