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 ...

A tangent to a circle at point P is a straight line that touches the circle at P. The tangent is perpendicular to the radius which joins the centre of the circle to the point P. As the tangent is ...

Save guides, add subjects and pick up where you left off with your BBC account. As the tangent is a straight line, the equation of the tangent will be of the form \(y = mx + c\). We can use ...