Show that, for small values of xxx, the graph of y=7+9sinx3+10tanx5y = 7 + 9\sin \frac{x}{3} + 10\tan \frac{x}{5}y=7+9sin3x+10tan5x can be approximated by a straight line.
Practise Edexcel A Level Maths 5.5 Small Angle Approximations with exam-style questions for A Level Maths. 25 questions, 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.