f(x)=lnx+exf(x) = \ln x + e^xf(x)=lnx+ex
Find f′(x)f'(x)f′(x)
Find f′′(x)f''(x)f′′(x)
Practise Edexcel A Level Maths 9.9 Using Second Derivatives with exam-style questions for A Level Maths. 57 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.