Excel has built-in functions for sine and cosine, the two core trigonometric functions, and for hyperbolic sine and hyperbolic cosine, their hyperbolic counterparts. It also has built-in functions for ...

You probably have an intuitive idea of what a circle is: the shape of a basketball hoop, a wheel or a quarter. You may even remember from high school that the radius is any straight line that starts ...

Working with the graphs of trigonometric functions Working with trigonometric relationships in degrees Calculating the area of a triangle using trigonometry Using ...

Bearings are angles used in navigation. Missing information about bearings can be worked out using the sine and cosine rules. Find out here. National 5 Maths - Using bearings in trigonometry. revision ...

TODHUNTER's “Trigonometry” is a very familiar friend of ours, and we have now before us a bundle of letters which we received from the author in 1861 and 1862, in reply to our criticisms and ...