Download and open circle.html to explore an interactive unit circle. Drag the point around the edge of the circle to change the angle and interact with the unit circle. Special angles (30°, 45°, 60°) ...

The unit circle Solving trigonometric equations Circular function graphs. To determine if this resource will benefit you, start by answering the following questions. What is the difference between ...

Trigonometric graphs can be sketched when you know the amplitude, period, phase and maximum and minimum turning points. Learn about graphs of trigonometric functions in this National 5 Maths guide.

Cosine and sine of an angle θ are defined to be the x and y-coordinates of the point P on the unit circle with the property that the line from O to P makes and angle θ with the positve x-axis. cos(θ) ...