| Exam Board | Edexcel |
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| Module | AEA (Advanced Extension Award) |
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| Year | 2005 |
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| Session | June |
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| Topic | Addition & Double Angle Formulae |
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2．Solve，for \(0 < \theta < 2 \pi\) ，
$$\sin 2 \theta + \cos 2 \theta + 1 = \sqrt { 6 } \cos \theta$$
giving your answers in terms of \(\pi\) ．