Given that
x=8cos23y0<y<π6x = 8 \cos^2 3y \qquad 0 < y < \frac{\pi}{6}x=8cos23y0<y<6π
show that
dydx=−1ABx−x2\frac{dy}{dx} = -\frac{1}{A\sqrt{Bx - x^2}}dxdy=−ABx−x21
where AAA and BBB are integers to be found.
Practise Edexcel A Level Maths 9.7 Parametric Differentiation with exam-style questions for A Level Maths. 36 questions, 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.