Solve, for 0∘≤x≤360∘0^\circ \leq x \leq 360^\circ0∘≤x≤360∘, the equation
tan2x+2secx−1=0 \tan^2x + 2\sec x - 1 = 0 tan2x+2secx−1=0Give your answers to 1 decimal place.
274 exam-style questions on Edexcel A Level Maths Trigonometric Functions, covering 6.1 Secant, Cosecant and Cotangent, 6.2 Graphs of Sec x, Cosec x and Cot x, 6.3 Using Sec x, Cosec x and Cot x, 6.4 Trigonometric Identities, and 6.5 Inverse Trigonometric Functions. Each one has a worked solution and a mark scheme showing where the marks go.