The displacement, sss millimetres, of a robotic arm at time ttt seconds is given by the equation
s=(0.35t−4.2)e0.4ts = (0.35t - 4.2) e^{0.4t}s=(0.35t−4.2)e0.4t
Determine, using calculus, the exact value of ttt for which the displacement has a stationary point.
Practise Edexcel A Level Maths 9.4 The Product Rule with exam-style questions for A Level Maths. 30 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.