Differentiate with respect to xxx,
x−1x2+6\displaystyle x - \frac{1}{x^2 + 6}x−x2+61
2+e0.5x22 + e^{0.5x^2}2+e0.5x2
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.