Mathematics 9709 · AS & A Level · Differentiation

Differentiation — practice question

The curve has equation $\cos 3x + 5\sin y = 3$.

(main)[5]

Determine the gradient of the curve at the point $\left(\frac{1}{9}\pi, \frac{1}{6}\pi\right)$.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Differentiate $\cos 3x$ to give $-3\sin 3x$” …