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.
133 exam-style questions on WJEC A Level Maths 3.6.5 Differentiation (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.