| Exam Board | CAIE |
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| Module | P2 (Pure Mathematics 2) |
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| Year | 2022 |
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| Session | November |
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| Marks | 4 |
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| Topic | Exponential Equations & Modelling |
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2 Use logarithms to solve the equation \(14 \mathrm { e } ^ { - 2 x } = 5 ^ { x + 1 }\), giving your answer correct to 3 significant figures. [4]