Mathematics 9709 · AS & A Level · Differentiation

Differentiation — practice question

The curve is defined by $y = f(x)$, with $f(x) = \dfrac{4x^3 + 8x - 4}{2x - 1}$.
(a)[5]

Find an expression for $\frac{dy}{dx}$ and then determine the coordinates of every stationary point on the curve $y = f(x)$.

(b)[5]

Perform division of $4x^3 + 8x - 4$ by $(2x - 1)$, and hence determine $\int f(x)\,dx$.

Worked solution & mark scheme

This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: Differentiate by applying the quotient rule (or product rule)

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