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Two American Teenage Girls Challenge 2,000 Years of Mathematics with a Groundbreaking Proof of Pythagoras’ Theorem
Any attempt at using sine, cosine, or tangent to verify Pythagoras’ equation seemed destined to rely on the theorem itself, leading to a circular argument. But two high school students refused ...
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Module 8 (M8) – Geometry & Measures – Trigonometry
It may be necessary to use Pythagoras ... tan button on the calculator \(\text{(}\tan^{-1}\text{)}\) Calculate the angle PRQ. Give the answer to three significant figures. Use the form \(\frac ...