2023 HCI P1 Q4

2023 HCI P1 Q4

6 marks
Prelims

Without the use of a calculator, show that

\(\displaystyle\displaystyle \displaystyle\int_{-2}^{2}{\frac{\left| x-2 \right|}{{{x}^{2}}-2x+4}\mathrm{d}x=p\ln 3+q\pi }\),

where \(p\) and \(q\) are exact real constants to be determined.[6]

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Answer:\(p=\dfrac12\), \(q=\dfrac1{2\sqrt3}\)

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