There are some trigonometric identities which you must remember in order to simplify trigonometric expressions when required. When you are asked to prove something, ignore the right hand side of the ...

Trigonometry is the branch of math that studies triangles, with a particular focus on the relationships between angles and the lengths of corresponding sides. Interestingly enough, the trigonometric ...

Sec(a-b) = cos(a+b) / cos^2a - sin^2b I'm trying to prove this, by turning the left side into the right. I am stuck. Presumably you have already done the sum and difference formulas for sin and cos.

Introduction to Trigonometry Class 10 Notes: Revision notes for Class 10 Introduction to Trigonometry have been attached to this article for students of the current academic session 2023-2024. These ...

The three sides of a right-angled triangle have special names. The hypotenuse (\(h\)) is the longest side. It is opposite the right angle. The opposite side (\(o\)) is opposite the angle in question ( ...

Most trigonometry students look at triangles on a flat surface. However, people from ancient astronomers to modern navigators calculated the arc lengths and angles of triangles on a sphere. They used ...

given cos to the power of 4X plus blah blah blah blah blah prove that okay so pretty much prove the identity right so here is our identity that we need to prove so uh I'm just trying to think where I ...

In the 1930s, a mathematician by the name of Nicolas Bourbaki was said to frequent the Café Capoulade in Paris, a haven for artists and intellectuals near Luxembourg Gardens. There he wrote an ...

This clay tablet written around the year 1800 B.C.E. may represent the oldest known use of trigonometry UNSW / Andrew Kelly A new analysis of a long-studied Babylonian tablet suggests that ...

The Babylonian civilization was at its peak roughly 4,000 years ago, with architecturally advanced cities throughout the region known today as Iraq. Babylonians were especially brilliant with math, ...

This is an updated version of a story first published on May 5, 2024. For many high school students returning to class, it may seem like geometry and trigonometry were created by the Greeks as a form ...