Curtis

A flow chart with all of the trigonometric functions and a description of how to derive trigonometric relationships based on simple operations on the elements of the chart. As long as you know the set up of the flow chart and one or two very basic trig relationships (e.g. tangent = sine/cosine) then you can derive the analogous relationships for any other trig functions. For example, you can derive the Pythagorean Identities: by squaring two elements that are horizontally adjacent to each other