CAIE P2 2012 November — Question 3

Exam BoardCAIE
ModuleP2 (Pure Mathematics 2)
Year2012
SessionNovember
TopicTrig Equations
3 Solve the equation $$2 \cos 2 \theta = 4 \cos \theta - 3$$ for \(0 ^ { \circ } \leqslant \theta \leqslant 180 ^ { \circ }\).
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