Hence determine $\int_{1}^{4} \left( \frac{4}{2x+1} + \frac{1}{2x} \right) \, dx$, giving your answer in the form $\ln k$.
Worked solution & mark scheme
This 9-mark question has a full step-by-step worked solution and mark scheme. One marking point: “Show $\int (2\cos^2\theta - \cos\theta - 3)\, d\theta$” …