The curve has equation y=x9+x2\displaystyle y = \frac{x}{9+x^2}y=9+x2x.
Find the coordinates of the stationary points of the curve and determine the nature of the stationary points.
57 exam-style questions on AQA A Level Maths 1.10.3 Applications of differentiation. Each one has a worked solution and a mark scheme showing where the marks go.