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Hungary | Math Olympiad Question
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Math Olympiad Geometry Problem | Find the length X in the regular hexagon
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Harvard University Admission Interview Tricks
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Q449 | Math Olympiad | Geometry | Semicircle | Cyclic Quadrilateral | Opposite Exterior Theorem
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A very nice olympiad question | How to solve (4 + \sqrt{5})^x + (4 - \sqrt{5})^× | Algebra |
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