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Date: 11-3-2020
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Date: 8-9-2020
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Date: 22-12-2020
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A triple of positive integers satisfying
is said to be harmonic if
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In particular, such a triple is harmonic if the reciprocals of its terms form an arithmetic sequence with common difference where
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One can show that there exists a one-to-one correspondence between the set of equivalence classes of harmonic triples and the set of equivalence classes of geometric triples where here, two triples and
are said to be equivalent if
, i.e., if there exists some positive real number
such that
.
REFERENCES:
VanderBurgh, I. (Ed.). "Mathematical Mayhem: Mayhem Solutions." Crux Math. 36, 141-143, 2010.
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