Stamps
Scott: 2527 A589
Scott: 2528 A589
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Khayyam was a Persian mathematician and astronomer.He wrote Treatise on Demonstration of Problems of Algebra which was one of the most important texts on algebra. It included a triangular array of binomial coefficients which we now call Pascal's triangle.
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Albania, 20l, 1997 Scott: 2527 A589 |
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Albania, 50l, 1997 Scott: 2528 A589 |
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