| Exam Board | WJEC |
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| Module | Further Unit 4 (Further Unit 4) |
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| Year | 2019 |
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| Session | June |
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| Topic | First order differential equations (integrating factor) |
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10. Given the differential equation
$$\sec x \frac { \mathrm {~d} y } { \mathrm {~d} x } + y \operatorname { cosec } x = 2$$
and \(x = \frac { \pi } { 2 }\) when \(y = 3\), find the value of \(y\) when \(x = \frac { \pi } { 4 }\).