Mathematics 9709 · AS & A Level · Integration

Integration — practice question

(i)[3]

Evaluate $\int \frac{\ln x}{x^3}\, dx$.

(ii)[2]

Hence demonstrate that $\int_{1}^{2} \frac{\ln x}{x^3}\, dx = \frac{1}{16}(3 - \ln 4)$.

Worked solution & mark scheme

This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: Apply integration by parts to get an expression of the form $a\frac{\ln x}{x^2}+b\int \frac{1}{x}\cdot\frac{1}{x^2}\,dx$.

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