CAIE P3 2014 June — Question 1

Exam BoardCAIE
ModuleP3 (Pure Mathematics 3)
Year2014
SessionJune
TopicAddition & Double Angle Formulae
1
  1. Simplify \(\sin 2 \alpha \sec \alpha\).
  2. Given that \(3 \cos 2 \beta + 7 \cos \beta = 0\), find the exact value of \(\cos \beta\).
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