CAIE P2 2017 November — Question 2

Exam BoardCAIE
ModuleP2 (Pure Mathematics 2)
Year2017
SessionNovember
TopicAddition & Double Angle Formulae
2 Solve the equation \(5 \cos \theta ( 1 + \cos 2 \theta ) = 4\) for \(0 ^ { \circ } \leqslant \theta \leqslant 360 ^ { \circ }\).
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