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10E: Trigonometric Functions & the Unit Circle

posted May 5, 2009, 4:08 PM by Eddie Woo
Yesterday's lesson bridged the 'gap' between thinking of trigonometry in terms of right angled triangles (e.g. sin(x) = opposite / hypotenuse) and thinking of it in terms of functions that you can graph and manipulate (e.g. y = sin(x), y = 2sin(x), y = sin(2x)). We looked at the unit circle to connect these two ways of understanding trigonometry. You all drew beautiful graphs!

For a copy of the worksheet (and worked solutions) we did on Trigonometric Functions and the Unit Circle, head on over to the Year 10 section or download it directly.