| Exam Board | OCR MEI |
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| Module | AS Paper 1 (AS Paper 1) |
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| Year | 2023 |
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| Session | June |
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| Topic | Trig Equations |
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4 In this question you must show detailed reasoning.
Solve the equation \(6 \cos ^ { 2 } x + \sin x = 5\), giving all the roots in the interval \(- 180 ^ { \circ } \leqslant x \leqslant 180 ^ { \circ }\).