Using small angle approximations, show that for small, non-zero values of xxx
xsin3x1−cos6x≈K\frac{x \sin 3x}{1 - \cos 6x} \approx K1−cos6xxsin3x≈K
where KKK is a constant to be determined.
Practise Edexcel A Level Maths Radians with exam-style questions for A Level Maths. 52 questions covering 5.1 Radian Measure, 5.2 Arc Length, 5.3 Areas of Sectors and Segments, 5.4 Solving Trigonometric Equations, and 5.5 Small Angle Approximations, matched to the Edexcel A Level Maths (9MA0) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.