Solve, for −180≤x≤180-180 \leq x \leq 180−180≤x≤180, the equation,
2cot2x−cosec2x+cosecx=4 2\cot^2x - \text{cosec}^2x + \text{cosec}x = 4 2cot2x−cosec2x+cosecx=4Give your answers to 1 decimal place where appropriate.
16 exam-style questions on OCR A Level Maths 1.5.8 Reciprocal and inverse trigonometric ratios (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.