| Exam Board | OCR MEI |
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| Module | C2 (Core Mathematics 2) |
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| Year | 2015 |
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| Session | June |
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| Topic | Trig Equations |
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7 Show that the equation \(\sin ^ { 2 } x = 3 \cos x - 2\) can be expressed as a quadratic equation in \(\cos x\) and hence solve the equation for values of \(x\) between 0 and \(2 \pi\).