18 year old students just discovered a proof of Pythagoras that mathematicians said was impossible
This is a truly remarkable story. A textbook said that it was impossible to prove the Pythagorean Theorem from trigonometry alone. Two US students questioned this claim and developed a new trigonometric proof. Congratulations to Ne’Kiya Jackson and Calcea Johnson for developing this wonderful proof.
0:00 Background
2:00 Outline
3:26 Preliminaries
5:58 Proof
14:20 More Proofs
AMS meeting
WWLTV news
The Guardian
@MathTrain
Elisha Loomis The Pythagorean Proposition
Slides
Reddit
Baudhayana Theorem
Gougu Theorem
Euclid I, 47
~djoyce/java/elements/bookI/
Babylonian formula
Brahmagupta’s law of sines
Pythagoras
#Attributed_discoveries
Trigonometric proof
#Trigonometric_proof_using_Einstein’s_construction
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