Enrich · Mathematics Advanced 11–12 – Year 11 · Trigonometry and measure of angles
Enrich Develop the definitions cosθ = x/r, sinθ = y/r and tanθ = y/x, where (x,y) is a point on the circle of radius r, centred at the origin, and θ is the angle between the positive x -axis and the radius drawn to this point
Extension and enrichment for students who are ready to go deeper: rich tasks, problem solving and open-ended challenges.
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