The trigonometric ratios sine, cosine and tangent are used to calculate angles and sides in right angled triangles. We are now going to extend trigonometry beyond right angled triangles and use it ...

Save guides, add subjects and pick up where you left off with your BBC account. We know the hypotenuse and are trying to find the value of \(y\), which is the adjacent. From SOH CAH TOA, we see ...

Graphs of Sine ... cosine are related to the unit circle. Transformations of Functions 1.3 An applet illustrating how transformations affect the graph of a function. Transformations are represented ...