| Exam Board | CAIE |
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| Module | Further Paper 2 (Further Paper 2) |
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| Year | 2020 |
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| Session | November |
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| Topic | First order differential equations (integrating factor) |
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4 Find the solution of the differential equation
$$x \frac { d y } { d x } + 2 y = e ^ { x }$$
for which \(y = 3\) when \(x = 1\). Give your answer in the form \(y = f ( x )\).