What do you think the graph of \(y = \cos 2x^\circ\) would look like ... point when \(y = - 1\) The graph looks like: Now try the example questions below.

Graphs of Sine and Cosine 1.2 An applet illustrating how the graphs of sine and cosine are related ... how the tangent to a parabola is obtained through successive secant lines. Functions with Corners ...

This circle has the centre at the origin and a radius of 1 unit. The point P can move around the circumference of the circle. At point P the \(x\)-coordinate is \(\cos{\theta}\) and the \(y ...