Solve, for −180≤y≤180-180 \leq y \leq 180−180≤y≤180, the equation,
3tan2y−sec2y+secy=3 3\tan^2y - \sec^2y + \sec y = 3 3tan2y−sec2y+secy=3Give your answers to 1 decimal place where appropriate.
23 exam-style questions on AQA A Level Maths 1.8.4 Reciprocal and inverse trigonometric functions (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.