A function f f\,f is defined by f(x)=2x1+x2,x∈R\displaystyle f(x) = \frac{2x}{1+x^2}, x \in \mathbb{R}f(x)=1+x22x,x∈R.
Find the coordinates of the stationary points of the graph of y=f(x)y = f(x)y=f(x) and determine the nature of these stationary points.
57 exam-style questions on OCR A Level Maths 1.7.14 Stationary points. Each one has a worked solution and a mark scheme showing where the marks go.