The curve C C\,C has the equation x=3tanyx = 3 \tan yx=3tany
Find dxdy\displaystyle \frac{dx}{dy}dydx in terms of yyy
Hence find dydx\displaystyle \frac{dy}{dx}dxdy in terms of xxx
35 exam-style questions on OCR (MEI) A Level Maths 1.5.16 Gradient of a parametric curve (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.