Mathematics 9709 · AS & A Level · Differentiation

Differentiation — practice question

The equation for a curve is $y = e^{-5x} \tan^2 x$ where $-\tfrac{1}{2}\pi < x < \tfrac{1}{2}\pi$.

(main)[8]

Find the $x$-coordinates of the stationary points on the curve. Give your answers correct to 3 decimal places where appropriate.

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Apply the correct product or quotient rule.” …