Use proof by contradiction to prove that the curve with equation
y=3x+x5+sinx y = 3x + x^5 + \sin x y=3x+x5+sinxhas no stationary points.
Practise AQA A Level Maths 1.4 A: Proof with exam-style questions for A Level Maths. 107 questions covering 1.4.1 Structure and methods of proof, matched to the AQA A Level Maths (7357) 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.
