| Exam Board | OCR MEI |
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| Module | C2 (Core Mathematics 2) |
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| Topic | Trig Equations |
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- Solve the equation \(\cos x = 0.4\) for \(0 ^ { \circ } \leqslant x \leqslant 360 ^ { \circ }\).
- Describe the transformation which maps the graph of \(y = \cos x\) onto the graph of \(y = \cos 2 x\).