| Exam Board | CAIE |
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| Module | P3 (Pure Mathematics 3) |
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| Year | 2017 |
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| Session | November |
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| Topic | Addition & Double Angle Formulae |
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3 By expressing the equation \(\tan \left( \theta + 60 ^ { \circ } \right) + \tan \left( \theta - 60 ^ { \circ } \right) = \cot \theta\) in terms of \(\tan \theta\) only, solve the equation for \(0 ^ { \circ } < \theta < 90 ^ { \circ }\).