| Exam Board | OCR |
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| Module | C4 (Core Mathematics 4) |
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| Year | 2015 |
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| Session | June |
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| Topic | Differentiating Transcendental Functions |
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3 The equation of a curve is \(y = \mathrm { e } ^ { 2 x } \cos x\). Find \(\frac { \mathrm { d } y } { \mathrm {~d} x }\) and hence find the coordinates of any stationary points for which \(- \pi \leqslant x \leqslant \pi\). Give your answers correct to 3 significant figures.