| Exam Board | OCR |
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| Module | C4 (Core Mathematics 4) |
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| Year | 2010 |
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| Session | January |
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| Topic | Integration by Substitution |
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4 Use the substitution \(u = 2 + \ln t\) to find the exact value of
$$\int _ { 1 } ^ { \mathrm { e } } \frac { 1 } { t ( 2 + \ln t ) ^ { 2 } } \mathrm {~d} t$$