A curve C C\,C has parametric equations
x=4+2cost,y=2cos2t−30≤t≤2π x = 4 + 2 \cos t, \quad y = 2 \cos 2t - 3 \quad 0 \leq t \leq 2\pi x=4+2cost,y=2cos2t−30≤t≤2πFind an equation for C C\,C 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
19 exam-style questions on Edexcel A Level Maths 8.3 Curve Sketching. Each one has a worked solution and a mark scheme showing where the marks go.