Mathematics 9709 · AS & A Level · Differentiation

Differentiation — practice question

The curve is defined by $y = \cos x \sin 2x$.

(main)[6]

Determine the $x$-coordinate of the stationary point for $0 < x < \frac{1}{2}\pi$, giving your answer correct to 3 significant figures.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Applies the product rule correctly” …