Solve, for 0≤θ<π0 \leq \theta < \pi0≤θ<π, the equation
4cosθ=cosecθ4\cos\theta = \operatorname{cosec}\theta4cosθ=cosecθ
Give your answers in terms of π\piπ.
221 exam-style questions on CCEA A Level Maths 3.4 Trigonometry (A-level only), covering 3.4.1 Trigonometry (A-level only), 3.4.2 Trigonometry (A-level only), 3.4.3 Trigonometry (A-level only), 3.4.4 Trigonometry (A-level only), 3.4.5 Trigonometry (A-level only), 3.4.6 Trigonometry (A-level only), 3.4.7 Trigonometry (A-level only), and 3.4.8 Trigonometry (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.