It is given that f(x)=4x3+3xf(x) = 4x^3 + 3xf(x)=4x3+3x
Use differentiation from first principles to prove that f′(x)=12x2+3f'(x) = 12x^2 + 3f′(x)=12x2+3
8 exam-style questions on WJEC A Level Maths 1.7.2 Differentiation. Each one has a worked solution and a mark scheme showing where the marks go.