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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 ...
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It was not the MIT or Harvard: These high school students discovered a proof to a theorem that might change math
It was previously believed that trigonometry, using sine, cosine, or tangent ... Calcea Johnson presented their innovative mathematical proof, and afterward got a shoutout from Michelle Obama ...
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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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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 ...