| Exam Board | CAIE |
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| Module | P3 (Pure Mathematics 3) |
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| Year | 2016 |
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| Session | November |
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| Topic | Reciprocal Trig & Identities |
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3 Express the equation \(\sec \theta = 3 \cos \theta + \tan \theta\) as a quadratic equation in \(\sin \theta\). Hence solve this equation for \(- 90 ^ { \circ } < \theta < 90 ^ { \circ }\).