Differentiate with respect to xxx,
e3x(cos2x+sinx)e^{3x}(\cos 2x + \sin x)e3x(cos2x+sinx)
ln(sinx)\ln(\sin x)ln(sinx)
51 exam-style questions on Edexcel A Level Maths 9.3 The Chain Rule. Each one has a worked solution and a mark scheme showing where the marks go.