Mathematics 9709 · AS & A Level · Differentiation

Differentiation — practice question

The curve defined by the equation $y = \sin x \cos 2x$ has a single stationary point in the interval $0 < x < \frac{1}{2}\pi$.
(main)[6]

Determine the $x$-coordinate of this point, and give 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: Apply product rule

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