x−1x2+6\displaystyle x - \frac{1}{x^2 + 6}x−x2+61
[2]
b.
2+e0.5x22 + e^{0.5x^2}2+e0.5x2
[2]
Markscheme
1.7.18 Chain rule (A-level only) Questions
74 exam-style questions on OCR A Level Maths 1.7.18 Chain rule (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.