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Verify that the curve has a stationary point at $x = 2$, then decide whether it is a maximum or minimum.
Mathematics 9709 · AS & A Level · Differentiation
Verify that the curve has a stationary point at $x = 2$, then decide whether it is a maximum or minimum.
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “First derivative correctly given by $\frac{dy}{dx}=2-2(x-1)^{-3}$” …