You’re standing at the edge of a cliff, phone in hand, trying to measure the distance to the opposite side – no tape measure, no drone, just your brain. Now what? Trigonometry just became your ...

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 ...

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 ...