Mathematics 9709 · AS & A Level · Differentiation

Differentiation — practice question

The curve is defined by $y = 3\ln(2x + 9) - 2\ln x$.
(a(i))[4]

Find the $x$-value of the stationary point.

(a(ii))[2]

Determine whether the stationary point is a maximum or a minimum.

Worked solution & mark scheme

This 6-mark question has a full step-by-step worked solution and mark scheme. One marking point: Differentiate to get an expression of the form $\frac{k_1}{2x+9}-\frac{k_2}{x}$

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