Both had studied geometry and some trigonometry, and both told us math was not easy. What no one told them was there had been more than 300 documented proofs of the Pythagorean Theorem using ...

University of New South Wales Honorary Professor Norman Wildberger has unveiled a potentially game-changing mathematical theory.

In 2022, two high school students created a trigonometric proof of the Pythagorean Theorem—something that’s only ever been accomplished by a few professional mathematicians. Now, a new article ...

These proofs come from several branches of mathematics, but the most comprehensive collection of them claims none come from trigonometry, which has taken the theorem as one of its starting points.

An animated guide to using trigonometry. Trigonometric terms are explained and examples are used to show how to find unknown angles and sides for right-angled triangles. Use as an introduction or ...

"The Ordinary Level paper presented a very typical and manageable set of questions spanning the usual suspects of ...

Formulas for differentiation are developed and include formulas for trigonometric, exponential, and logarithmic functions. Applications to physics, economics and geometry are highlighted. Successful ...

Of course, plenty of proofs of this theorem exist, but very few use trigonometry to make their argument—the theorem is so central to that particular field of mathematics that to do so would ...