A curve has the equation 2sinx+2cosy=32 \sin x + 2 \cos y = 32sinx+2cosy=3 where 0≤x≤π 0 \leq x \leq \pi\,0≤x≤π and 0≤y≤π0 \leq y \leq \pi0≤y≤π.
Find an expression for dydx\displaystyle \frac{dy}{dx}dxdy
find the coordinates of the point where dydx=0\displaystyle \frac{dy}{dx} = 0dxdy=0
Practise Edexcel A Level Maths 9.3 The Chain Rule with exam-style questions for A Level Maths. 50 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.