How to Use Trig Functions in Excel. Excel has built-in functions for sine and cosine, the two core trigonometric functions, and for hyperbolic sine and hyperbolic cosine, their hyperbolic ...

Trigonometry allows one to systematically convert between measurements of angles and measurements of length, a topic that has interested mathematical astronomers from antiquity. Ancient Greeks also ...

Revise using bearings in trigonometry for your National 5 maths exam with Bitesize Scotland interactive practice quizzes covering feedback and common errors.

Revise calculating the area of a triangle using trigonometry for your National 5 maths exam with Bitesize Scotland interactive practice quizzes covering feedback and common errors.

Two New Orleans high school students have proven the Pythagorean Theorem using trigonometry without relying on circular reasoning. That should be impossible.

Two US college students, who discovered a new way to prove Pythagoras' famous 2,000-year-old theorem in 2022 have now come up with five different ways of solving the problem using trigonometry.