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High school students who came up with 'impossible' proof of Pythagorean theorem discover 9 more solutions to the problem
But Jackson and Johnson managed to prove the theorem using a result of trigonometry called the Law of Sines ... and its ...
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Two American Teenage Girls Challenge 2,000 Years of Mathematics with a Groundbreaking Proof of Pythagoras’ Theorem
Why? Because trigonometry itself is built upon the very theorem it seeks to prove. Any attempt at using sine, cosine, or tangent to verify Pythagoras’ equation seemed destined to rely on the ...
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Using the sine and cosine rules to find a side or angle in a triangle
The trigonometric ratios sine, cosine and tangent are used to calculate angles and sides in right angled triangles. We are now going to extend trigonometry beyond right angled triangles and use it ...