The point P P\,P lies on the curve with equation y=xx−1y = x\sqrt{x-1}y=xx−1 with x x\,x coordinate 5
Find an equation to the normal to the curve at the point PPP.
51 exam-style questions on Edexcel A Level Maths 9.3 The Chain Rule. Each one has a worked solution and a mark scheme showing where the marks go.