Differentiate with respect to xxx,
e3x(cos2x+sinx)e^{3x}(\cos 2x + \sin x)e3x(cos2x+sinx)
ln(sinx)\ln(\sin x)ln(sinx)
133 exam-style questions on WJEC A Level Maths 3.6.5 Differentiation (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.