This video was done by a teacher in Victoria and explains how to do the questions in Ex 6J: Finding the equation of a circular function from its graph.


This video was done by the same teacher and explains how to solve the questions in Ex 6C and Ex 6D using the Symmetry Properties


Video 1 This video explains the fundamental definitions of the sine, cosine and tangent functions in the unit circle. 
Video 2
This video explains how we get the exact values for 45 4590 and 306090 degree triangles 
Video 3
This video goes through how to find exact values for circular functions using multiples of pi/4 around unit circle. 
Video 4
This video goes through how to find exact values for circular functions using multiples of pi/6 around unit circle. 
Videos 5 and 6
These two videos explain a trick for remembering the exact values for the circular functions. 
Click on the buttons below to go to videos arranged according to subject in Circular Functions: