Given that x=−sin−1(14)x=-\sin^{-1}\left(\dfrac{1}{4}\right)x=−sin−1(41) is a solution of the equation,
kcosx+cotx=0 k \cos x + \cot x = 0 kcosx+cotx=0find the value of kkk.
Hence solve, for −π≤x≤π-\pi \leq x \leq \pi−π≤x≤π, the equation.
Give your answers to 2 decimal places where appropriate.
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.