Symmetry properties of circular functions
Circular functions
Mathematical Methods: Units 1 and 2
MaffsGuru Logo Sitting
Videos in this series
Please select a video from the same chapter
Video Images Video Images Video Images Video Images Video Images
Lesson notes

There are currently no lesson notes at this time to download. I add new content every week.

VCE Maths exam question content used by permission, ©VCAA. The VCAA is not affiliated with, and does not endorse, this video resource. VCE® is a registered trademark of the VCAA. Past VCE exams and related content can be accessed at


I love everything to do with the Unit Circle and this has to be my favourite lesson of all time. The beauty of the symmetry properties of circular functions never fails to impress me. In this video sit back and enjoy as I take you on a journey of learning and discovery about the unit circle. Looking at the construction of the Unit Circle and how we can relate angles to the length of horizontal and vertical lines doesn't sound very easy, but I take time to explain the concepts in an easy to understand way. I look at all the identities which are created from the Unit Circle and then explain how they can be used with the ASTC notation to help you find the size of any angle between 90 and 360 degrees if you know the size of an acute angle int he first quadrant. I look at a number of questions and show how they can try and trick us!
Video tags

unit circle trigonometry unit circle trig functions unit circle explained symmetry properties of circular functions circular functions circular functions and their graphs circular function value circular function and trigonometry circular functions of any angle on the unit circle Methods 1 and 2 VCE Maths unit circle