Show that, for small values of xxx, the graph of
y=7+9sinx3+10tanx5 y = 7 + 9\sin \frac{x}{3} + 10\tan \frac{x}{5} y=7+9sin3x+10tan5xcan be approximated by a straight line.
69 exam-style questions on Edexcel A Level Maths Radians, 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. Each one has a worked solution and a mark scheme showing where the marks go.