A curve K K\,K has parametric equations
x=3sint+2,y=2cos2t−50≤t≤2π x = 3 \sin t + 2, \quad y = 2 \cos^2 t - 5 \quad 0 \leq t \leq 2\pi x=3sint+2,y=2cos2t−50≤t≤2πFind an equation for K K\,K in the form y=f(x)y = f(x)y=f(x) and state the domain for which the curve is defined.
Sketch the curve
Practise Edexcel A Level Maths Parametric Equations with exam-style questions for A Level Maths. 64 questions covering 8.1 Parametric Equations, 8.2 Using Trigonometric Identities, 8.3 Curve Sketching, 8.4 Points of Intersection, and 8.5 Modelling with Parametric Equations, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.