| Exam Board | OCR |
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| Module | FP3 (Further Pure Mathematics 3) |
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| Year | 2014 |
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| Session | June |
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| Topic | First order differential equations (integrating factor) |
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2 Use the substitution \(u = y ^ { 2 }\) to find the general solution of the differential equation
$$\frac { \mathrm { d } y } { \mathrm {~d} x } - 2 y = \frac { \mathrm { e } ^ { x } } { y }$$
for \(y\) in terms of \(x\).