Mathematics 9709 · AS & A Level · Integration

Integration — practice question

Define $f(x)$ by $f(x) = \dfrac{10x + 9}{(2x + 1)(2x + 3)^2}$.
(i)[5]

Write $f(x)$ as a sum of partial fractions.

(ii)[5]

Hence show that $\int_0^1 f(x) \, dx = \frac{1}{2} \ln \frac{9}{5} + \frac{1}{5}$.

Worked solution & mark scheme

This 10-mark question has a full step-by-step worked solution and mark scheme. One marking point: Give, or make clear, the partial fractions structure

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