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)
57 exam-style questions on Edexcel A Level Maths 9.9 Using Second Derivatives. Each one has a worked solution and a mark scheme showing where the marks go.