| Exam Board | OCR MEI |
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| Module | C3 (Core Mathematics 3) |
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| Topic | Product & Quotient Rules |
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3
- Given that \(y = \mathrm { e } ^ { - x } \sin 2 x\), find \(\frac { \mathrm { d } y } { \mathrm {~d} x }\).
- Hence show that the curve \(y = \mathrm { e } ^ { - x } \sin 2 x\) has a stationary point when \(x = \frac { 1 } { 2 } \arctan 2\).