| Exam Board | CAIE |
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| Module | P2 (Pure Mathematics 2) |
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| Year | 2011 |
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| Session | November |
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| Topic | Reciprocal Trig & Identities |
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5 Solve the equation \(5 \sec ^ { 2 } 2 \theta = \tan 2 \theta + 9\), giving all solutions in the interval \(0 ^ { \circ } \leqslant \theta \leqslant 180 ^ { \circ }\).