Use this formula when given the sizes of two sides and its included angle.

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

Graphs of Sine and Cosine 1.2 An applet illustrating how the graphs of sine and cosine are related to the unit circle. Transformations of Functions 1.3 An applet illustrating how transformations ...

These Foundation and Higher maths formula booklet resources will help secondary students master essential formulas for their GCSEs and mocks ...